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coin (n.)[coin 词源字典]: c. 1300, "a wedge," from Old French coing (12c.) "a wedge; stamp; piece of money; corner, angle," from Latin cuneus "a wedge." The die for stamping metal was wedge-shaped, and the English word came to mean "thing stamped, a piece of money" by late 14c. (a sense that already had developed in French). Compare quoin, which split off from this word 16c. Modern French coin is "corner, angle, nook." Coins were first struck in western Asia Minor in 7c. B.C.E.; Greek tradition and Herodotus credit the Lydians with being first to make and use coins of silver and gold.[coin etymology, coin origin, 英语词源]
coin (v.): "to coin money," mid-14c., from coin (n.). Related: Coined; coining. To coin a phrase is late 16c. A Middle English word for minter was coin-smiter.
coinage (n.): late 14c., "currency, money," from Old French coignage, from coignier "to coin" (see coin (n.)). Meaning "act or process of coining money" is from early 15c.; sense "deliberate formation of a new word" is from 1690s, from a general sense of "something invented" (c. 1600).
coincide (v.): 1705, "be identical in substance or nature," but from 1640s as a verb in English in Latin form, "occupy the same space, agree in position," from Medieval Latin coincidere (used in astrology), literally "to fall upon together," from Latin com- "together" (see co-) + incidere "to fall upon" (in- "upon" + cadere "to fall;" see case (n.1)). From 1809 as "occur at the same time." Related: Coincided; coinciding.
coincidence (n.): c. 1600, "exact correspondence in substance or nature," from French coincidence, from coincider, from Medieval Latin coincidere (see coincide). From 1640s as "occurrence or existence during the same time." Meaning "a concurrence of events with no apparent connection" is from 1680s, perhaps first in writings of Sir Thomas Browne.
coincident (adj.): late 16c., from French coincident, from coincider (see coincide).
coincidental (adj.): c. 1800, from coincident + -al (1).
coincidentally (adv.): 1837, from coincidental + -ly (2).
coincidently: 1620s, from coincident + -ly (2).
Cointreau (n.): orange-flavored liqueur, named for founders Adolphe and Edouard-Jean Cointreau, brothers from Angers, France, who set up Cointreau Distillery in 1849. The orange liqueur dates from 1875.
coir (n.): "prepared coconut fiber," 1580s, from Malayalam kayar "cord," from kayaru "to be twisted."
coit (n.): "coition," early 15c., from Latin coitus "going together," also "coition," from coire "to go together" (see coitus).
coition (n.): 1540s, "going together, coming together," from Late Latin coitionem (nominative coitio), noun of action from coitus, past participle of coire "to go together, come together" (see coitus). Meaning "sexual copulation" is attested in English from 1610s.
coitus (n.): "copulation," 1713, scientific Latin, from Latin coitus "a meeting together; sexual union," past participle of coire, from com- "together" (see co-) + ire "come, go," (see ion). In Middle English as coite (early 15c.). Used in English in general senses of "meeting, uniting," and also of magnetic force, planetary conjunction, etc., before sexual sense came to predominate.
coitus interruptus (n.): 1900, first attested in Havelock Ellis.
cojones (n.): "courage," literally "balls," 1932, from Spanish cojon "testicle," from Latin coleus, culleus (source of Italian coglione), literally "a leather sack," related to Greek koleos "sheath, scabbard (see cell). In English, first attested in Hemingway.
coke (n.2): shortened form of cocaine, 1908, American English.
coke (n.1): "residue of fuel," 1690s, northern English dialect, perhaps a variant of Middle English colke "core, charcoal" (c. 1400), itself possibly related to -colc, an Old English word for "pit," which perhaps would give it a sense of "what is left in the pit after a fire."
Coke: soft drink, 1909, shortening of brand name Coca-Cola.
col-: form of Latin com- before stems beginning in -l- (see com-).