Online Etymology Dictionary

know-how (n.): also knowhow, "technical expertise," 1838, American English, from know (v.) + how (adv.).
nudist: 1929, adjective and noun, from French nudiste or formed in English from nude (adj.) + -ist; also see nudism.
kop (n.): "hill," 1835, from Afrikaans, from Dutch kop "head," from the Germanic form of the root of English cup (n.); compare German Kopf "head."
chicle (n.): 1889, American English (in chicle-gum), from Mexican Spanish chicle, from Nahuatl (Aztecan) tzictli.
nig (n.): c. 1300, "niggardly person" (see niggard). As an abbreviated form of nigger, attested by c. 1832, American English.
nitrate (n.): 1794, from French nitrate (1787) or formed in English from nitre + -ate (3). Related: Nitrates.
egg-nog (n.): also eggnog, c. 1775, American English, from egg (n.) + nog "strong ale."
el (n.): American English abbreviation of elevated railroad, first recorded 1906 in O. Henry. See L.
sodomise (v.): chiefly British English spelling of sodomize. For suffix, see -ize. Related: Sodomised; sodomising.
selective (adj.): 1620s; see select (adj.) + -ive. Related: Selectively; selectiveness. Selective service is from 1917, American English.
dreamless (adj.): c. 1600, from dream (n.) + -less. Old English dreamleas meant "joyless." Related: Dreamlessly; dreamlessness.
seaside (n.): also sea-side, c. 1200, from sea + side (n.). As an adjective from 1781. Old English had sæhealf.
drinker (n.): Old English drincere, agent noun from drink (v.). Specifically of consumers of alcoholic beverages from c. 1200.
eastward (adv.): also eastwards, Old English eastwearde; see east + -ward. As an adjective mid-15c., from the adverb.
shite (n.): colloquial modern alternative spelling of shit (n.), preserving the original vowel of the Old English verb.
shellfish (n.): also shell-fish, Old English scylfiscas (plural); see shell (n.) + fish (n.).
Shabbat (n.): 1934, from Hebrew shabbat (see Sabbath). Earlier in English as Shabbos (1870), from Yiddish shabes.
silken (adj.): Old English seolcen "made of silk;" see silk + -en (2). Meaning "silk-like, soft and glossy" is from 1510s.
empanada (n.): 1939, American English, from Spanish empanada, past participle adjective (fem.) of empanar "to roll and fry."
essayist (n.): "writer of essays," c. 1600, from essay (n.) + -ist. French essayiste (19c.) is from English.
Essex: Old English East-Seaxe "East Saxons," who had a 7c. kingdom there. See east, Saxon.
snogging (n.): "kissing and cuddling," British English slang, 1945, of unknown origin, said to have originated in British India.
sinner (n.): mid-14c., agent noun from sin (v.). Old English had synngiend in this sense.
Ethel: fem. proper name, originally a shortening of Old English Etheldred, Ethelinda, etc., in which the first element means "nobility."
Ethelbert: Anglo-Saxon masc. proper name, Old English Æðelbryht, literally "nobility-bright;" see atheling + bright (adj.).
Etheldred: Anglo-Saxon fem. proper name, Old English Æðelðryð, literally "of noble strength" (see Audrey).
sorrowful (adj.): Old English sorgful "sad, anxious, careful; distressing, doleful;" see sorrow (n.) + -ful. Related: Sorrowfully; sorowfulness.
even (n.): "end of the day," Old English æfen, Mercian efen, Northumbrian efern (see eve (n.)).
evensong (n.): the native word for vespers, Old English æfensang; see even (n.) + song.
evenness (n.): Old English efenniss "equality, equity;" see even (adj.) + -ness. Meaning "levelness, smoothness" is late 14c.
double talk (n.): 1938, from double (adj.) + talk (n.). Old English had a similar formation in twispræc "double speech, deceit, detraction."
polemicist (n.): 1859, American English formation parallel to polemist (1825), from Greek polemistes "a warrior," from polemizein "to wage war, to make war."
roommate (n.): also room-mate, 1789, American English, from room (n.) + mate (n.). Short form roomie is from 1918.
poxy (adj.): 1853 in literal sense, from pox + -y (2). As a deprecatory adjective, attested in English dialects by 1899.
crappie (n.): type of freshwater fish, 1856, American English, of unknown origin; perhaps from Canadian French dialectal crappé.
perp (n.): American English police slang shortening of perpetrator (as in perp walk); by 1940s.
Queens: New York City borough, named for Catherine of Braganza, queen of English King Charles II.
cobbler (n.2): "deep-dish fruit pie," 1859, American English, perhaps related to 14c. cobeler "wooden bowl."
cold-hearted (adj.): c. 1600, from cold (adj.) + hearted. Originally in Shakespeare. Old English had cealdheort (adj.) "cruel."
pianist (n.): 1822, from French pianiste, from Italian pianista; see piano + -ist. Earlier in English in the French form, pianiste (1816).
playground (n.): 1780, from play (v.) + ground (n.). Old English had plegstow "village sports ground," literally "place for play."
cleanly (adj.): Old English clænlic "morally pure, innocent," from clæne (see clean (adj.)). Of persons, "habitually clean," from c. 1500.
clough (n.): "ravine with a river," Old English cloh (in place names), of uncertain origin.
prioritise (v.): chiefly British English spelling of prioritize. For suffix, see -ize. Related: Prioritised; prioritising; prioritisation.
percentile (n.): 1885, coined by English scientist Francis Galton (1822-1911) from percent + -ile.
rectangular (adj.): 1620s, from Middle French rectangulaire (16c.) or formed in English from Latin stem of rectangle + -ar. Related: Rectangularity.
publicise (v.): chiefly British English spelling of publicize. For suffix, see -ize. Related: Publicised; publicising.
quale (n.): "death, destruction," Old English cwalu, cognate with Old Norse kval "torment, torture," from a variant of the root of quell.
rationalise (v.): chiefly British English spelling of rationalize. For suffix, see -ize. Related: Rationalised; rationalising; rationalisation.
proselytise (v.): chiefly British English spelling of proselytize (q.v.). For suffix, see -ize. Related: Proselytised; proselytising.