Online Etymology Dictionary

hap (v.): "to come to pass, be the case," c. 1300, from hap (n.) "chance, fortune, luck, fate," or from Old English hæppan.
hollow (v.): late 14c., "to make hollow," holowen, from hollow (adj.). Related: Hollowed; hollowing. Old English had holian "to hollow out."
handcraft (n.): Old English handcræft "manual skill, power of the hand; handicraft;" see hand (n.) + craft (n.).
awe (v.): c. 1300, from awe (n.); Old English had egan (v.). Related: Awed; awing.
impenitence (n.): 1620s, from Late Latin impaenitentia, from impaenitens (see impenitent). The older form in English is Impenitency (1560s).
Athelstan: masc. proper name, Old English Æðelstane, literally "noble stone;" see atheling + stone (n.).
Anglicism (n.): 1640s, "anglicized language," from Latin Anglicus "of the English" (see Angle) + -ism. As an instance of this, from 1781.
archdeacon (n.): Old English arcediacon, from Church Latin archidiaconus, from Ecclesiastical Greek arkhidiakonon "chief deacon;" see arch- + deacon.
anti-imperialist (adj.): 1898, American English, in debates about the Spanish-American War, from anti- + imperialist. Related: Anti-imperialism.
handgun (n.): mid-14c., of unmounted firearms, from hand (n.) + gun (n.). In modern use, "a pistol," from 1930s, American English.
ache (n.): early 15c., æche, from Old English æce, from Proto-Germanic *akiz, from same source as ache (v.).
guiltless (adj.): late Old English gyltleas; see guilt (n.) + -less. Related: Guiltlessly; guiltlessness.
gunsmith (n.): 1580s, from gun (n.) + smith. Middle English had gun-maker (late 14c.).
high-roller (n.): "extravagant spender," by 1873, American English, probably originally a reference to a gambler throwing dice.
hereof (adv.): "of this, concerning this," late Old English; see here + of (prep.). Compare Danish hereaf, Swedish häraf.
heard: past tense and past participle of hear, Old English herde. To have heard of "know about" is from 1907.
ecosystem (n.): 1935; see eco- + system. Perhaps coined by English ecologist Sir Arthur George Tansley (1871-1955).
reportage (n.): "the describing of events," 1877; see report (v.) + -age. From 1881 as a French word in English.
bethink (v.): reflexive verb, Old English beþencan "to consider," from be- + þencan "to think" (see think). Related: Bethought.
big mouth (n.): also bigmouth "person who talks too much," 1889, American English, from big + mouth (n.).
sympathise (v.): chiefly British English spelling of sympathize (q.v.); for suffix, see -ize. Related: Sympathised; sympathising.
lacklustre (adj.): also lack-lustre, chiefly British English spelling of lackluster (q.v.); for spelling, see -re.
scrutinise (v.): chiefly British English spelling of scrutinize (q.v.); for suffix, see -ize. Related: Scrutinised; scrutinising; scrutinisation.
wonder-worker (n.): 1590s, from wonder (n.) + worker, translating Greek thaumatourgos. Old English had wundorweorc "miracle."
truly (adv.): Old English treowlice, from treow (see true (adj.)). Similar formation in Dutch treuwelijk, German getreulich, Swedish troligen.
Devon: county name, Old English Defena(scir), late 9c., "(territory of the) Dumnonii," a Celtic name. As a type of cattle, from 1834.
dextrous (adj.): 1620s, alternative spelling of dexterous; this version is more conformable to Latin but less common in English.
dexterous (adj.): c. 1600, "convenient, suitable," formed in English from Latin dexter (see dexterity) + -ous. Meaning "skillful, clever" is from 1620s.
euthanise (v.): chiefly British English spelling of euthanize; for suffix, see -ize. Related: Euthanised; euthanising.
epitomise (v.): chiefly British English spelling of epitomize. For spelling, see -ize. Related: Epitomised; epitomises; epitomising.
freighter (n.): 1620s, "one who loads (a ship)," agent noun from freight (v.). Meaning "a cargo vessel" is from 1839, American English.
furthermore (adv.): c. 1200, from further (adv.) + more. There also was a farthermore in Middle English. Related: Furthermost.
frisky (adj.): "gaily active," c. 1500, from Middle English adjective frisk "lively" (see frisk (v.) + -y (2). Related: Friskiness.
futz (v.): "loaf, waste time," 1932, American English, perhaps from Yiddish. Related: Futzed; futzing.
expressway (n.): by 1945, American English, from express (adj.) + way (n.). Express highway is recorded by 1938.
eyebrow (n.): also eye-brow, early 15c., from eye (n.) + brow (q.v.; Old English eagbræw meant "eyelid").
bushed (adj.): "tired," 1870, American English, perhaps from earlier sense of "lost in the woods" (1856), from bush (n.).
factionalism (n.): 1860, American English, from factional + -ism. Prominent up 1930s-1950s in communist jargon.
fess (v.): shortened form of confess, attested by 1840, American English. With up (adv.) from 1930. Related: Fessed; fesses; fessing.
finalise (v.): chiefly British English spelling of finalize. For suffix, see -ize. Related: Finalised; finalising.
fiendish (adj.): 1520s, from fiend + -ish. Related: Fiendishly; fiendishness. Old English had feondlic "hostile."
flavour: chiefly British English spelling of flavor; for spelling, see -or. Related: Flavoured; flavourful; flavouring.
footprint (n.): 1550s, from foot (n.) + print (n.). Related: Footprints. Old English had fotspor, fotswæð.
forthwith (prep.): c. 1200, from forth + with. The Old English equivalent was forð mid. As an adverb, early 14c.
fowler (n.): Old English fugelere, agent noun from fuglian "to hunt fowl" (see fowl (v.)). The German equivalent is Vogler.
forsworn (adj.): from Old English forsworen, "perjured," past participle of forswerian "to swear falsely" (see forswear).
galvanise (v.): chiefly British English spelling of galvanize; for suffix, see -ize. Related: Galvanised; galvanising.
familiarise (v.): chiefly British English spelling of familiarize; for spelling, see -ize. Related: Familiarised; familiarising.
favourable (adj.): chiefly British English spelling of favorable; for spelling, see -or. Related: Favourably.
fluidity (n.): c. 1600, from French fluidité, from fluide (see fluid (adj.)), or else formed in English from fluid.