Online Etymology Dictionary

sinful (adj.): Old English synnfull "full of sin, wicked, unholy, contrary to the laws of God;" see sin (n.) + -ful. Weakened sense of "contrary to propriety or decency" is from 1863. Related: Sinfully; sinfulness.
singer (n.): early 14c. (mid-13c. as a surname), agent noun from sing (v.). Old English had songer "psalm-writer," sangere "singer, poet" (also see songster).
jus: a word that has entered English in expressions from Latin, where it means "law, right" (see jurist) and French, where it means "juice" (see juice (n.)).
evenly (adv.): Old English efenlice "evenly, equally;" see even (adj.) + -ly (2). Meaning "so as to produce uniformity of texture is early 15c.; that of "without surface irregularities, smoothly" is from 1630s.
even (v.): Old English efnan "to make even, to make level; liken, compare" (see even (adj.)). Intransitive sense of "become even" is attested from early 13c. Related: Evened; evening.
youthful (adj.): 1560s, from youth + -ful. Old English had geoguðlic. Other words formerly used in the same sense were youthlike, youthly, youthsome, youthy. Related: Youthfulness.
double-header (n.): 1869, American English, originally a kind of fireworks or a railway train pulled by two engines; see double (adj.) + head (n.). Baseball sense is c. 1890.
satisfice (v.): 1560s, "to satisfy" (implied in satisficed), altered of satisfy by influence of its Latin root satisfacere. A Northern English colloquial word; modern use from c. 1956 may be an independent formation. Related: Satisficing.
seductive (adj.): 1740, from Latin seduct-, past participle stem of seducere (see seduce) + -ive. Related: Seductively; seductiveness. Middle English had seducious "deceitful, devious" (mid-15c.).
palpation (n.): late 15c., from Middle French palpation, from Latin palpationem (nominative palpatio) "stroking, flattering, flattery," noun of action from past participle stem of palpare "to touch" (see feel (v.)). Used in English in literal sense.
phalange (n.): mid-15c., "phalanx, ancient military division," from Middle French phalange "phalanx" (13c.), from Latin phalangem (nominative phalanx); see phalanx. It is the earlier form of this word in English.
player (n.): Old English plegere, agent noun from play (v.). Stage sense is from mid-15c. As a pimp's word for himself (also playa), attested from 1974. Player-piano attested from 1901.
cleanser (n.): 1520s, "a purgative;" 1560s, "one who cleans," agent noun from cleanse (v.). Meaning "thing that cleanses" is from late 14c. Old English had clænsere "priest."
clothier (n.): mid-14c., clother; late 15c., clothyer (late 13c. as a surname) Middle English agent noun from cloth; also see -ier, which is unetymological in this word and probably acquired by bad influence.
prescriptive (adj.): 1748, from Late Latin praescriptivus, from praescript-, past participle stem of praescribere (see prescription). Or formed in English from archaic prescript "a direction" (1530s), from Latin praescriptum.
patriate (v.): 1966, in Canadian English (perhaps coined by Lester B. Pearson) in reference to constitutional laws, probably a back-formation from repatriate. Related: Patriated; patriation.
nevermind (n.): also never-mind "difference, matter for attention," 1935, American English, from verbal expression never mind "forget it," originally never mind it attested by 1795; see never + mind (v.).
nous (n.): slang for "intelligence, common sense," 1706, from Greek nous, Attic form of noos "mind, intellect," which was taken in English in philosophy 1670s.
pt-: An initial consonant combination common in Greek; the p- is typically silent in English words that have it but pronounced in French, German, etc.
ptosis (n.): 1743, from Greek ptosis, literally "falling, a fall," also "the case of a noun," nominal derivative of piptein "to fall" (see symptom). In English, especially of the eyelid. Related: Ptotic.
medicate (v.): "to treat medicinally," 1620s, a back-formation from medication, or else from Late Latin medicatus, past participle of medicare. Related: Medicated; medicating. The earlier verb in English was simply medicin (late 14c.).
rickety (adj.): "liable to fall down," 1680s, from rickets (with + -y (2)), via notion of "weak, unhealthy." Literal sense is from c. 1720 but never common in English. Of material things, from 1799.
defecation (n.): 1620s, from Late Latin defecationem (nominative deficatio), noun of action from past participle stem of Latin defecare (see defecate). An Old English word for "bowel movement" was arse-gang literally "arse-going."
reaver (n.): Old English reafere "plundering forager," agent noun from reafian (see reave (v.)). Similar formation in Old Frisian ravere, Middle Dutch rover, Dutch roover, Old High German roubari, German Räuber.
right hand (n.): Old English rihthand; see right (adj.2) + hand (n.). Figurative for "indispensable person," 1520s; right-hand man first attested 1660s. Right-handed attested from late 14c.
extern (n.): "outsider," c. 1600, from Middle French externe "outer, outward;" as a noun, "a day-scholar," from Latin externus "outside," also used as a noun (see external). As an adjective in English from 1530s.
stonemason (n.): 1733, from stone (n.) + mason. Another name for the profession was hard-hewer (15c.). Stone-cutter is from 1530s; Old English had stanwyrhta "stone-wright."
stony (adj.): also stoney, Old English stænig; see stone (n.) + -y (2). Similar formation in Old High German steinag, German Steinig, Swedish stenig. Related: Stonily; stoniness.
sun-up (n.): also sunup, "sunrise," 1712, from sun (n.) + up (adv.). In local use in U.S., and, according to OED, also in Caribbean English and formerly in South Africa.
-metry: word-forming element meaning "process of measuring," Middle English -metrie, from Middle French -metrie, from Latin -metria, from Greek -metria "a measuring of," from -metros "measurer of," from metron "measure" (see meter (n.2)).
thirsty (adj.): Old English þurstig "thirsty, greedy;" see thirst (n.) + -y (2). Related: Thirstily; thirstiness. Similar formation in Old Frisian, Dutch dorstig, German durstig.
threaten (v.): late 13c., "attempt to influence by menacing," from Old English þreatnian "to threaten" (see threat). Related: Threatened. Threatening in the sense of "portending no good" is recorded from 1520s.
townhouse (n.): 1825, "a residence in a town," from town + house (n.) from a time when well-off families had country houses as well. As a type of suburban attached housing, c. 1968, American English.
thereto (adv.): Old English þærto "to it, in that place, for that purpose, belonging to;" see there + to. Similar formation in Old Saxon tharto, Old High German darazuo, German dazu.
soothsayer (n.): mid-14c., zoþ ziggere (Kentish), "one who speaks truth,;" late 14c., sothseggere, "fortune-teller;" see sooth + say. Old English had soðsagu "act of speaking the truth."
everywhere (adv.): c. 1200, eauerihwer, contracted from Old English æfre gehwær; see ever (adv.) + where. Not from every; the -i- in the word apparently was a prefix; compare handiwork.
exact (v.): mid-15c., from Latin exactus, past participle of exigere "require, enforce, demand, collect (money);" see exact (adj.). Older in English than the adjective and retaining the literal sense of the Latin source. Related: Exacted; exacting.
twiggy (adj.): "slender," 1560s, from twig + -y (2). The famous 1960s English model was born Lesley Hornby (1949). The older adjectival form was twiggen "made of twigs" (1540s).
train-spotting (n.): 1959 (train spotter attested from 1958), chiefly British English, in reference to the hobby of recording the numbers of railway locomotives one has observed; from train (n.) in the railroad sense + verbal noun from spot (v.).
feal (adj.): "faithful," 1560s, not found in Middle English but apparently from Old French feal "faithful, loyal, true, sincere," collateral form of feeil, from Latin fidelis "loyal" (see fidelity).
transportation (n.): 1530s, "act of transporting," noun of action from transport (v.). Middle English used verbal noun transporting (early 15c.). In the sense of "means of conveyance" it is first recorded 1853.
trap (v.): late 14c., "ensnare (an animal), catch in a trap; encircle; capture," from trap (n.) or from Old English betræppan. Figurative use is slightly earlier (late 14c.). Related: Trapped; trapping.
shroud (v.): c. 1300, "to clothe, to cover, protect," from Old English scrydan, scridan "to clothe, dress;" see shroud (n.). Meaning "to hide from view, conceal" (transitive) is attested from early 15c. Related: Shrouded; shrouding.
mash (v.): Old English mæscan, "to mix with hot water," from same root as mash (n.). Meaning "to beat into a soft mass" is mid-13c. Related: Mashed; mashing. For romantic sense, see masher.
low (n.2): "hill," obsolete except in place names, Old English hlaw "hill, mound," especially "barrow," related to hleonian "to lean" (see lean (v.)). Compare Latin clivus "hill" from the same PIE root.
blink (n.): 1590s, "a glance;" see blink (v.). As is the case with the verb, there is a similar word in Middle English, in use from c. 1300, that might represent a native form of the same root.
blear (v.): "to dim (of vision); to have watery or rheumy eyes," early 14c., of uncertain origin, possibly from an Old English *blerian, from the same source as blear (adj.). Related: Bleared; blearing.
murder (v.): Old English myrðrian, from Proto-Germanic *murthjan (source also of Old High German murdran, German mördren, Gothic maurþjan; see murder (n.)). Related: Murdered; murdering.
low-profile (adj.): 1957, in reference to automobile wheels, from low (adj.) + profile (n.). General sense by 1970, American English, in reference to Nixon Administration policy of partial U.S. disengagement from burdensome commitments abroad.
Kidderminster: type of two-ply carpet, 1832, named for the town in England where it was manufactured. The place name is Anglo-French Chideminstre, literally "Cydder's Monastery," from an Old English personal name.