convent (n.) Look up convent at Dictionary.com
c. 1200, covent, cuvent, from Anglo-French covent, from Old French convent, from Latin conventus "assembly," used in Medieval Latin for "religious house," originally past participle of convenire "come together" (see convene). Not exclusively feminine until 18c. The form with restored Latin -n- emerged early 15c. The Middle English form remains in London's Covent Garden district (notorious late 18c. for brothels), so called because it had been the garden of a defunct monastery.
COVENT GARDEN ABBESS. A bawd.
COVENT GARDEN AGUE. The venereal diſeaſe.
["Classical Dictionary of the Vulgar Tongue," 1796]
Burke (v.) Look up Burke at Dictionary.com
family name (first recorded 1066), from Anglo-Norman pronunciation of Old English burgh. Not common in England itself, but it took root in Ireland, where William de Burgo went in 1171 with Henry II and later became Earl of Ulster. As shorthand for a royalty reference book, it represents "A General and Heraldic Dictionary of the Peerage and Baronetage of the United Kingdom," first issued 1826, compiled by John Burke (1787-1848). As a verb meaning "murder by smothering," it is abstracted from William Burk, executed in Edinburgh 1829 for murdering several persons to sell their bodies for dissection.
rough (v.) Look up rough at Dictionary.com
late 15c., from rough (adj.). Related: Roughed; roughing. Phrase rough it "submit to hardships" (1768) is originally nautical:
To lie rough; to lie all night in one's clothes: called also roughing it. Likewise to sleep on the bare deck of a ship, when the person is commonly advised to chuse the softest plank. [Grose, "Dictionary of the Vulgar Tongue," 1788]
To rough out "shape or plan approximately" is from 1770. To rough up "make rough" is from 1763. To rough (someone) up "beat up, jostle violently" is from 1868. The U.S. football penalty roughing was originally a term from boxing (1866).
rum (adj.) Look up rum at Dictionary.com
"excellent, fine, good, valuable," 1560s, from rome "fine" (1560s), said to be from Romany rom "male, husband" (see Romany). E.g. rum kicks "Breeches of gold or silver brocade, or richly laced with gold or silver" [Grose, "Dictionary of the Vulgar Tongue," 1785].

A very common 16c. cant word, by 1774 it also had come to mean "odd, strange, bad, spurious," perhaps because it had been so often used approvingly by rogues in reference to one another. This was the main sense after c. 1800.
tractor (n.) Look up tractor at Dictionary.com
1856, "something that pulls," from Modern Latin tractor "that which draws," agent noun from past participle stem of Latin trahere "to pull, draw" (see tract (n.1)). Earlier used of a quack device consisting of two metal rods which were supposed to relieve rheumatism (1798, in full Perkins's metallic tractor); still the main sense in Century Dictionary (1891).

Sense of "an engine or vehicle for pulling wagons or plows" is recorded by 1896, from earlier traction engine (1859). The meaning "powerful truck for pulling a freight trailer" is first found 1926; tractor-trailer as "combined motor-truck and trailer" is from 1914.
Mithras Look up Mithras at Dictionary.com
Persian god of light, 1550s, from Latin, from Greek Mithras, from Avestan Mithra-, from Indo-Iranian *mitram "contract," whence *mitras "contractual partner, friend," conceptualized as a god, or, according to Kent, first the epithet of a divinity and eventually his name; from PIE root *mei- "to bind" (see mitre). Related to Sanskrit Mitrah, a Vedic deity associated with Varuna. "His name is one of the earliest Indic words we possess, being found in clay tablets from Anatolia dating to about 1500 B.C." [Calvert Watkins, "Dictionary of Indo-European Roots," 2000]. Related: Mithraic; Mithraism.
miss (n.2) Look up miss at Dictionary.com
"the term of honour to a young girl" [Johnson], originally (c. 1600) a shortened form of mistress. By 1640s as "prostitute, concubine;" sense of "title for a young unmarried woman, girl" first recorded 1660s. In the 1811 reprint of the slang dictionary, Miss Laycock is given as an underworld euphemism for "the monosyllable." Miss America is from 1922 as the title bestowed on the winner of an annual nationwide U.S. beauty/talent contest. Earlier it meant "young American women generally" or "the United States personified as a young woman," and it also was the name of a fast motor boat.
snood (n.) Look up snood at Dictionary.com
Old English snod "ribbon for the hair," from Proto-Germanic *snodo (source also of Swedish snod "string, cord"), from PIE root *(s)ne- "to spin, sew" (source also of Lettish snate "a linen cover," Old Irish snathe "thread;" see needle (n.)). In the Middle Ages, typically worn by young unmarried girls, hence "It was held to be emblematic of maidenhood or virginity" [Century Dictionary]. Modern fashion meaning "bag-like hair net" first recorded 1938 (these also were worn by girls in the Middle Ages, but they are not snoods properly).
swaddle (v.) Look up swaddle at Dictionary.com
"bind with long strips of cloth," late 15c. alteration of Middle English swathlen (c. 1200), probably a frequentative form of Old English swaþian (see swathe). Related: Swaddled; swaddling. Phrase swaddling clothes is from Coverdale (1535) translation of Luke ii:7.
Young children ... are still bandaged in this manner in many parts of Europe to prevent them from using their limbs freely, owing to a fancy that those who are left free in infancy become deformed. [Century Dictionary, 1891]
Wyclif uses swathing-clothes (late 14c.).
sylph (n.) Look up sylph at Dictionary.com
1650s, "air-spirit," from Modern Latin sylphes (plural), coined 16c. by Paracelsus (1493-1541), originally referring to any race of spirits inhabiting the air, described as being mortal but lacking a soul. Paracelsus' word seems to be an arbitrary coinage, but perhaps it holds a suggestion of Latin silva and Greek nymph, or Greek silphe "a kind of beetle," but French etymologists propose a Gaulish origin. The Century Dictionary comments that, "to occultists and quacks like Paracelsus words spelled with -y- look more Greek and convincing." The meaning "graceful girl" first recorded 1838, on the notion of "slender figure and light, airy movement" [OED].
coomb (n.) Look up coomb at Dictionary.com
also combe, "deep hollow or valley, especially on flank of a hill," mainly surviving in place names, from Old English cumb, probably a British word, from Celtic base *kumbos (compare Welsh cwm in same sense). Cambridge Dictionary of English Place-Names says, "This is usually taken to be a Celtic loan ... but there was also OE cumb 'vessel, cup, bowl,'" which was "probably used in a transferred topographical sense reinforced in western districts by cwm."
sly (adj.) Look up sly at Dictionary.com
c. 1200, "skillful, clever, dexterous," from Old Norse sloegr "cunning, crafty, sly," from Proto-Germanic *slogis (source also of Low German slu "cunning, sly," German schlau), probably from base *slak- "to strike, hit" (see slay (v.)), with an original notion of "able to hit." Compare German verschlagen "cunning, crafty, sly," schlagfertig "quick-witted," literally "strike-ready," from schlagen "to strike." A non-pejorative use of the word lingered in northern English dialect until 20c. On the sly "in secret" is recorded from 1812. Sly-boots "a seeming Silly, but subtil Fellow" is in the 1700 "Dictionary of the Canting Crew."
singe (v.) Look up singe at Dictionary.com
Old English sengan "to burn lightly, burn the edges" (of hair, wings, etc.), from Proto-Germanic *sangjanan (source also of Old Frisian of-sendza, Middle Dutch singhen, Dutch zengen, Old High German sengan, German sengen "to singe"). The root is said to be related to that of sing (v.), on the idea of some sort of sound produced by singeing (Century Dictionary), but Klein's sources reject this. Related: Singed; singeing. Singed cat "person whose appearance does not do him justice, person who is better than he looks" is from 1827.
second (adj.) Look up second at Dictionary.com
"next after first," c. 1300, from Old French second, secont, and directly from Latin secundus "following, next in time or order," also "secondary, subordinate, inferior," from root of sequi "follow" (see sequel). Replaced native other in this sense because of the ambiguousness of the earlier word. Second sight is from 1610s; an etymologically perverse term, because it means in reality the sight of events before, not after, they occur. Second fiddle first attested 1809:
A metaphor borrowed from a musical performer who plays the second or counter to one who plays the first or the "air." [Bartlett, "Dictionary of Americanisms," 1848]
found (adj.) Look up found at Dictionary.com
"discovered," late 14c., past participle adjective from find (v.). Expression and found attached to the wages or charges in old advertisements for job openings, travelling berths, etc., indicates that meals are provided. It comes from the expression to find one's self "to provide for one's self." "When a laborer engages to provide himself with victuals, he is said to find himself, or to receive day wages" [Bartlett, "Dictionary of Americanisms," 1848]. Hence, so much and found for "wages + meals provided."
indiction (n.) Look up indiction at Dictionary.com
late 14c., "period of fifteen years," a chronological unit of the Roman calendar that continued in use through the Middle Ages, from Latin indictionem (nominative indictio), literally "declaration, appointment," noun of action from past participle stem of indicere "to declare publicly, proclaim, announce," from in- "in" (see in- (2)) + dicere "to speak, say, tell" (see diction).

Fixed by Constantine and reckoned from Sept. 1, 312. Originally for taxation purposes, it was "a common and convenient means for dating ordinary transactions" [Century Dictionary]. The name refers to the "proclamation," at the beginning of each period, of the valuation upon which real property would be taxed.
hedonism (n.) Look up hedonism at Dictionary.com
1828 in reference to the philosophy; 1844 as "self-indulgence," from Greek hedone "pleasure" (see hedonist) + -ism.
The doctrine of Aristippus and the Cyrenaic school of Greek philosophers, that the pleasure of the moment is the only possible end, that one kind of pleasure is not to be preferred to another, and that a man should in the interest of pleasure govern his pleasures and not be governed by them; hence, that ethical doctrine which regards pleasure or happiness as the highest good. ... Egoistic hedonism considers only the pleasure of the individual; altruistic hedonism takes into account that of others. [Century Dictionary]
theism (n.) Look up theism at Dictionary.com
1670s, "belief in a deity or deities," (as opposed to atheism); by 1711 as "belief in one god" (as opposed to polytheism); by 1714 as "belief in the existence of God as creator and ruler of the universe" (as opposed to deism), the usual modern sense; see theist + -ism.
Theism assumes a living relation of God to his creatures, but does not define it. It differs from deism in that the latter is negative and involves a denial of revelation, while the former is affirmative, and underlies Christianity. One may be a theist and not be a Christian, but he cannot be a Christian and not be a theist. [Century Dictionary]
futurism (n.) Look up futurism at Dictionary.com
1909 as the name of a movement in arts and literature, from Italian futurismo, coined 1909 by Italian poet Filippo Tommaso Marinetti (1876-1944); see future + -ism. Futurist is from 1911 in the arts movement sense; attested from 1842 in a Protestant theological sense ("one who holds that nearly the whole of the Book of Revelations refers principally to events yet to come" - Century Dictionary). As "one who has (positive) feelings about the future" it is attested from 1846 but marked in dictionaries as "rare."
fetishism (n.) Look up fetishism at Dictionary.com
1801, "worship of fetishes," from fetish + -ism. Expanded in use by Comte taking it to denote a general type of primitive religion (animism). In the purely psycho-sexual sense, first recorded 1897 in writings of Henry Havelock Ellis (1859-1939).
In certain perversions of the sexual instinct, the person, part of the body, or particular object belonging to the person by whom the impulse is excited, is called the fetish of the patient. [E. Morselli in "Baldwin Dictionary of Philosophy," 1901]
Related: Fetishist (1845; psycho-sexual sense from 1897); fetishistic.
fellowship (n.) Look up fellowship at Dictionary.com
c. 1200, feolahschipe "companionship," from fellow + -ship. Sense of "a body of companions" is from late 13c. Meaning "spirit of comradeship, friendliness" is from late 14c. As a state of privilege in English colleges, from 1530s. In Middle English it was at times a euphemism for "sexual intercourse" (carnal fellowship).
To fellowship with is to hold communion with; to unite with in doctrine and discipline. This barbarism now appears with disgusting frequency in the reports of ecclesiastical conventions, and in the religious newspapers generally. [Bartlett, "Dictionary of Americanisms," 1848]
But Chaucer and Wyclif used it as a verb in Middle English, "to have fellowship with."
gangling (adj.) Look up gangling at Dictionary.com
"long and loose-jointed," by 1812, from Scottish and Northern English gang (v.) "to walk, go," which is a survival of Old English gangan, which is related to gang (n.). The form of the word is that of a present-participle adjective from a frequentative verb (as in fondling, trampling), but no intermediate forms are known. The sense extension would seem to be via some notion involving looseness in walking.
GANGLING. Tall, slender, delicate, generally applied to plants. Warw. [James O. Halliwell, "A Dictionary of Archaic and Provincial Words," 1846]
gantlet (n.) Look up gantlet at Dictionary.com
"military punishment in which offender runs between rows of men who beat him in passing," 1640s, gantlope, gantelope, from Swedish gatlopp "passageway," from Old Swedish gata "lane" (see gate (n.)) + lopp "course," related to löpa "to run" (see leap (v.)). Probably borrowed by English soldiers during Thirty Years' War.

By normal evolution the Modern English form would be *gatelope, but the current spelling (first attested 1660s, not fixed until mid-19c.) is from influence of gauntlet (n.1) "a glove," "there being some vague association with 'throwing down the gauntlet' in challenge" [Century Dictionary].
infibulate (v.) Look up infibulate at Dictionary.com
"to clasp, confine with a buckle, ring, clasp, or the like," especially of the sexual organs, to prevent copulation, 1620s, from Latin infibulatus, past participle of infibulare "to close with a clasp," from in- "on" (see in- (2)) + fibula "a clasp, pin" (see fibula). Related: Infibulated.
This operation was very generally practised in antiquity upon both young men and young women, but in later times chiefly upon the latter; and it is said to be still in use in some parts of the East. [Century Dictionary, 1902]
knock up (v.) Look up knock up at Dictionary.com
1660s, "arouse by knocking at the door," from knock (v.) + up (adv.). However it is little used in this sense in American English, where the phrase means "get a woman pregnant" (1813), possibly ultimately from knock in a sense "to copulate with" (1590s; compare slang knocking-shop "brothel," 1860).
Knocked up in the United States, amongst females, the phrase is equivalent to being enciente, so that Englishmen often unconsciously commit themselves when amongst our Yankee cousins. [John Camden Hotten, "The Slang Dictionary," London, 1860]
bitter end (n.) Look up bitter end at Dictionary.com
In lexicons of sea language going back to 1759, the bitter end is the part of a cable which is round about the bits (two great timbers used to belay cables) when the ship is at anchor.
Bitter end of the Cable, the End which is wound about the Bitts. ["The News-Readers Pocket-Book: Or, a Military Dictionary," London, 1759]
See bit (n.1). So, when a cable is played out to the bitter end, there is no more left to play. The term began to be used c. 1835 in non-nautical use and with probable influence of bitter (adj.).
Mohammed Look up Mohammed at Dictionary.com
former common English transliteration of Muhammad.
The worst of letting the learned gentry bully us out of our traditional Mahometan & Mahomet ... is this: no sooner have we tried to be good & learnt to say, or at least write, Mohammed than they are fired with zeal to get us a step or two further on the path of truth, which at present seems likely to end in Muhammad with a dot under the h .... [H.W. Fowler, "A Dictionary of Modern English Usage," 1926]
motorist (n.) Look up motorist at Dictionary.com
"motor-car driver," 1896, from motor- + -ist. Earlier as a name for electric railway drivers (1889). Other early alternatives included motorneer.
"Motorer" we have given our reasons for rejecting, and there only remains "motorist" or a compound like "motor-man" or "motor-driver." Mr. C.P.G. Scott, the etymologist of the Century Dictionary, strongly favors "motor-man" or "motor-driver," though he would not object to "motorist" and prefers it above any other single word. ["Electric Power," October 1889]
infanticide (n.) Look up infanticide at Dictionary.com
1650s, "the killing of infants," especially the killing of newborns or the unborn; 1670s, "one who kills an infant," from infant + -cide. Perhaps from French infanticide (16c.).
In Christian and Hebrew communities infanticide has always been regarded as not less criminal than any other kind of murder; but in most others, in both ancient and modern times, it has been practised and regarded as even excusable, and in some enjoined and legally performed, as in cases of congenital weakness or deformity among some of the communities of ancient Greece. [Century Dictionary]
rakish (adj.) Look up rakish at Dictionary.com
1706, "debauched, disreputable," from rake (n.2) + -ish. Related: Rakishly; rakishness.

The meaning "smart, jaunty, dashing" (1824) is said to be a different word, probably from rake "slant, slope" (1620s), used especially in reference to any deviation from the vertical in a ship's masts, of uncertain origin, perhaps from Scandinavian (compare Old Swedish raka "project, reach;" Danish rage "protrude, project") related to Old English reccan "stretch." "The piratical craft of former times were distinguished for their rakish build" [Century Dictionary].
Scilly Look up Scilly at Dictionary.com
isles off Cornwall, of unknown origin. Pliny has Silumnus, Silimnis. Perhaps connected with the Roman god Sulis (compare Aquae sulis "Bath"). The -y might be Old Norse ey "island" The -c- added 16c.-17c. "[A]bout the only certain thing that can be said is that the c of the modern spelling is not original but was added for distinction from ModE silly as this word developed in meaning from 'happy, blissful' to 'foolish.'" [Victor Watts, "Cambridge Dictionary of English Place-Names," 2004].
gauge (n.) Look up gauge at Dictionary.com
early 15c., "fixed standard of measure" (surname Gageman is early 14c.), from Old North French gauge "gauging rod" (see gauge (v.)). Meaning "instrument for measuring" is from 1670s; meaning "distance between rails on a railway" is from 1841.
Railway-gage, the distance between perpendiculars on the insides of the heads of the two rails of a track. Standard gage is 4 feet 8 1/2 inches; anything less than this is narrow gage; anything broader is broad gage. The dimension was fixed for the United States by the wheels of the British locomotive imported from the Stephenson Works in 1829. [Century Dictionary]
rest (v.2) Look up rest at Dictionary.com
"to be left, remain," mid-15c., from Old French rester "to remain," from Latin restare "stand back, be left," from re- "back" (see re-) + stare "to stand," from PIE root *stā- "to stand, set down, make or be firm" (see stet). Partially confused and merged with the other verb rest. Sense of "to continue to be" is in rest assured. Transitive sense of "to keep, cause to continue to remain" was common in 16c.-17c., "used with a predicate adjective following and qualifying the object" [Century Dictionary], hence phrase rest you merry (1540s); God rest you merry, gentlemen, often is mis-punctuated.
smack (v.3) Look up smack at Dictionary.com
mid-13c., "to smell (something"); mid-14c., "to taste (something), perceive by taste" (transitive); late 14c. "to have a taste, taste of" (intransitive), from smack (n.1). Compare Old English smæccan "to taste," Old Frisian smakia Middle Dutch smaecken, Old High German smakken "have a savor, scent, or taste," German schmecken "taste, try, smell, perceive." Sometimes also smatch. Now mainly in verbal figurative use smacks of ... (first attested 1590s). "Commonly but erroneously regarded as identical with [smack (n.2)], as if 'taste' proceeds from 'smacking the lips.'" [Century Dictionary]
Walker Look up Walker at Dictionary.com
surname, early 13c., probably an agent noun from walk (v.) in the sense "to full cloth." preserves the cloth-fulling sense (walker with this meaning is attested from c. 1300). "Walker" or "Hookey Walker" was a common slang retort of incredulity in early and mid-19c. London, for which "Various problematic explanations have been offered" [Century Dictionary].
"Is it?" said Scrooge. "Go and buy it."
"Walk-ER!" exclaimed the boy.
"No, no," said Scrooge. "I am in earnest" (etc.)
[Dickens, "A Christmas Carol"]
Islamophobia (n.) Look up Islamophobia at Dictionary.com
"hostility or discrimination against Muslims," supposedly rooted in dread or hatred of Islam, by 1996, from Islam + -phobia, as used in Jodeaophobia, Francophobia, etc.
The term [a report by the liberal think-tank Runnymede Trust] uses, 'Islamophobia,' is so recently coined that it has yet to be recognised in the Oxford English Dictionary, but according to the trust the phenomenon it refers to 'has existed in western countries and cultures for centuries.' ["Islamophobia," Third Way, April 1997]
Related: Islamophobic; Islamophobe.
pony (v.) Look up pony at Dictionary.com
1824, in pony up "to pay," of uncertain origin; similar uses of pony or poney in the sense "money" date to late 18c. OED says from pony (n.), but not exactly how. "Dictionary of American Slang" says it is from slang use of Latin legem pone (q.v.) to mean "money" (first recorded 16c.), because this was the title of the Psalm for March 25, a Quarter Day and the first payday of the year. Latin pone is the imperative of Latin ponere "to put, place" (see position). Related: Ponied; ponying.
lexicon (n.) Look up lexicon at Dictionary.com
c. 1600, "a dictionary, a word-book," from Middle French lexicon or directly from Modern Latin lexicon, from Greek lexikon (biblion) "word (book)," from neuter of lexikos "pertaining to words," from lexis "word, a speaking, saying, speech, phrase; way of speaking, diction," from legein "to say" (see lecture (n.)).

Especially of dictionaries of Greek, Syriac, Hebrew, or Arabic, because these typically were written in Latin, and in Modern Latin lexicon (not dictionarius) was the preferred name for a word-book. The modern sense of "vocabulary proper to some sphere of activity" (1640s) is a figurative extension.
liberal (n.) Look up liberal at Dictionary.com
1820, "member of the progressive and reformist political party of Great Britain, an anti-Whig," from liberal (adj.). General meaning "person of liberal political principles or tendencies" (without reference to party) is by 1832; in reference to persons of a political ideology not conservative or fascist but short of socialism, from c. 1920. Also used from early 20c. of ministers from less-dogmatic Christian churches.
Conservative, n. A statesman who is enamored of existing evils, as distinguished from the Liberal, who wishes to replace them with others. [Ambrose Bierce, "Devil's Dictionary," 1911]
leprechaun (n.) Look up leprechaun at Dictionary.com
c. 1600, from Irish lupracan, metathesis of Old Irish luchorpan literally "a very small body," from lu "little, small" (from PIE *legwh- "having little weight;" see lever (n.)) + corpan, diminutive of corp "body," from Latin corpus "body" (see corporeal).

Commonly spelled lubrican in 17c. English; "Century Dictionary" (1902) has it under leprechawn. Variant leithbragan probably is Irish folk etymology, from leith "half" + brog "brogue," because the spirit was "supposed to be always employed in making or mending a single shoe."
limey (n.) Look up limey at Dictionary.com
1888, Australian, New Zealand, and South African slang for "English immigrant," short for lime-juicer (1857), a nickname given in derisive reference to the British Navy's policy (begun 1795) of issuing lime (n.2) juice on ships to prevent scurvy among sailors. U.S. use is attested from 1918, originally "British sailor, British warship;" extended to "any Englishman" by 1924.
Midway Signs Limey Prof to Dope Yank Talk ["Chicago Tribune" headline, Oct. 18, 1924, in reference to the hiring of William A. Craigie by University of Chicago to begin editing what would become the "Dictionary of American English"]
achieve (v.) Look up achieve at Dictionary.com
early 14c., from Old French achever (12c.) "to finish, accomplish, complete," from phrase à chef (venir) "at an end, finished," or Vulgar Latin *accapare, from Late Latin ad caput (venire); both the French and Late Latin phrases meaning literally "to come to a head," from stem of Latin caput "head" (see capitulum).
The Lat. caput, towards the end of the Empire, and in Merov[ingian] times, took the sense of an end, whence the phrase ad caput venire, in the sense of to come to an end .... Venire ad caput naturally produced the Fr. phrase venir à chef = venir à bout. ... From this chief, O.Fr. form of chef (q.v.) in sense of term, end, comes the Fr. compd. achever = venir à chef, to end, finish. [Auguste Brachet, "An Etymological Dictionary of the French Language," transl. G.W. Kitchin, Oxford, 1878]
Related: Achieved; achieving.
crank (n.) Look up crank at Dictionary.com
"handle for turning a revolving axis," Old English *cranc, implied in crancstæf "a weaver's instrument," crencestre "female weaver, spinster," from Proto-Germanic base *krank-, and related to crincan "to bend, yield" (see crinkle, cringe). English retains the literal sense of the ancient root, while German and Dutch krank "sick," formerly "weak, small," is from a figurative use. The 1825 supplement to Jamieson's Scottish dictionary has crank "infirm, weak, etc."

The sense of "an eccentric person," especially one who is irrationally fixated, is first recorded 1833, said to be from the crank of a barrel organ, which makes it play the same tune over and over; but more likely a back-formation from cranky (q.v.). Meaning "methamphetamine" attested by 1989.
December (n.) Look up December at Dictionary.com
c. 1000, from Old French decembre, from Latin December, from decem "ten" (see ten); tenth month of the old Roman calendar, which began with March.

The -ber in four Latin month names is probably from -bris, an adjectival suffix. Tucker thinks that the first five months were named for their positions in the agricultural cycle, and "after the gathering in of the crops, the months were merely numbered."
If the word contains an element related to mensis, we must assume a *decemo-membris (from *-mensris). October must then be by analogy from a false division Sep-tem-ber &c. Perhaps, however, from *de-cem(o)-mr-is, i.e. "forming the tenth part or division," from *mer- ..., while October = *octuo-mr-is. [T.G. Tucker, "Etymological Dictionary of Latin"]
abandon (v.) Look up abandon at Dictionary.com
late 14c., "to give up, surrender (oneself or something), give over utterly; to yield (oneself) utterly (to religion, fornication, etc.)," from Old French abandoner (12c.), from adverbial phrase à bandon "at will, at discretion," from à "at, to" (see ad-) + bandon "power, jurisdiction," from Latin bannum, "proclamation," from a Frankish word related to ban (v.).
Mettre sa forest à bandon was a feudal law phrase in the 13th cent. = mettre sa forêt à permission, i.e. to open it freely to any one for pasture or to cut wood in; hence the later sense of giving up one's rights for a time, letting go, leaving, abandoning. [Auguste Brachet, "An Etymological Dictionary of the French Language," transl. G.W. Kitchin, Oxford, 1878]
Etymologically, the word carries a sense of "put someone under someone else's control." Meaning "to give up absolutely" is from late 14c. Related: Abandoned; abandoning.
gadfly (n.) Look up gadfly at Dictionary.com
also gad-fly, 1620s, "fly which bites cattle," probably from gad (n.) "goad, metal rod," here in the sense of "stinger;" but the sense is entangled with gad (v.) "rove about" (on the notion, perhaps, of the insect's power of flight or of the restlessness of animals plagued by them), and another early meaning of gadfly was "someone who likes to go about, often stopping here and there" (1610s). Sense of "one who irritates another" is from 1640s (equivalent of Latin oestrus; see estrus). "In strictness, only the females are gadflies, the males being smaller and quite inoffensive, living on juices of plants" [Century Dictionary]. Earlier bot-fly, from bot "skin parasite" (late 15c.).
kabuki (n.) Look up kabuki at Dictionary.com
1896, from Japanese, popular theater (as opposed to shadow puppet-plays or lyrical Noh dramas).
Kabuki comes from the verb 'kabuku', meaning 'to deviate from the normal manners and customs, to do something absurd.' Today kabuki is performed only by men, but the first kabuki performance was given in about 1603 by a girl, a shrine maiden of Kyoto named O-kuni, who 'deviated from the normal customs' by dressing as a man and entertaining the public with satirical dances in the grounds of the Kitano shrine. [Toshie M. Evans, "A Dictionary of Japanese Loanwords," 1997]
Alternative etymology [Barnhart, OED] is that it means literally "art of song and dance," from ka "song" + bu "dance" + ki "art, skill."
kibosh (n.) Look up kibosh at Dictionary.com
1836, kye-bosk, in British English slang phrase put the kibosh on, of unknown origin, despite intense speculation. The earliest citation is in Dickens. Looks Yiddish, but its original appearance in a piece set in the heavily Irish "Seven Dials" neighborhood in the West End of London seems to argue against this.

One candidate is Irish caip bháis, caipín báis "cap of death," sometimes said to be the black cap a judge would don when pronouncing a death sentence, but in other sources this is identified as a gruesome method of execution "employed by Brit. forces against 1798 insurgents" [Bernard Share, "Slanguage, A Dictionary of Irish Slang"]. Or the word might somehow be connected with Turkish bosh (see bosh).
-kin Look up -kin at Dictionary.com
diminutive suffix, first attested late 12c. in proper names adopted from Flanders and Holland. As it is not found in Old English it probably is from Middle Dutch -kin, properly a double-diminutive, from -k + -in. Equivalent to German -chen. Also borrowed in Old French as -quin, where it usually has a bad sense.
This suffix, which is almost barren in French, has been more largely developed in the Picard patois, which uses it for new forms, such as verquin, a shabby little glass (verre); painequin, a bad little loaf (pain); Pierrequin poor little Pierre, &c. ["An Etymological Dictionary of the French Language," transl. G.W. Kitchin, Oxford, 1878]
Used in later Middle English with common nouns. In some words it is directly from Dutch or Flemish.
educate (v.) Look up educate at Dictionary.com
mid-15c., "bring up (children), to train," from Latin educatus, past participle of educare "bring up, rear, educate" (source also of Italian educare, Spanish educar, French éduquer), which is a frequentative of or otherwise related to educere "bring out, lead forth," from ex- "out" (see ex-) + ducere "to lead" (see duke (n.)). Meaning "provide schooling" is first attested 1580s. Related: Educated; educating.

According to "Century Dictionary," educere, of a child, is "usually with reference to bodily nurture or support, while educare refers more frequently to the mind," and, "There is no authority for the common statement that the primary sense of education is to 'draw out or unfold the powers of the mind.'"