cruet (n.) Look up cruet at Dictionary.com
"small glass bottle for vinegar, oil, etc.," c.1300, Anglo-French diminutive of Old French crue "an earthen pot," from Frankish *kruka or some other Germanic source (compare Old High German kruog); related to crock.
cruise (v.) Look up cruise at Dictionary.com
1650s, from Dutch kruisen "to cross, sail to and fro," from kruis "cross," from Latin crux. Compare the sense evolution in cognate cross (v.). Related: Cruised; cruising. As a noun from 1706.
cruiser (n.) Look up cruiser at Dictionary.com
1670s, agent noun from cruise (v.), or, probably, borrowed from similar words in neighboring languages (such as Dutch kruiser, French croiseur), originally a warship built to cruise and protect commerce or chase hostile ships (but in 18c. often applied to privateers); meaning "one who cruises for sex partners" is from 1903, in later use mostly of homosexuals; as a boxing weight class, from 1920; meaning "police patrol car" is 1929, American English.
cruller (n.) Look up cruller at Dictionary.com
1805, American English, apparently from Dutch kruller, from krullen "to curl," from Middle Dutch crullen, related to curl.
crumb (n.) Look up crumb at Dictionary.com
Old English cruma "crumb, fragment," from a West Germanic root of obscure origin (compare Middle Dutch crume, Dutch kruim, German krume). The -b- appeared mid-15c., in part by analogy with words like dumb, in part perhaps reinforced by crumble. Slang meaning "lousy person" is 1918, from crumb, U.S. slang for "body-louse" (1863), so called from resemblance.
crumble (v.) Look up crumble at Dictionary.com
late 15c., kremelen, from Old English *crymelan, presumed frequentative of gecrymman "to break into crumbs," from cruma (see crumb). The -b- is 16c., probably on analogy of French-derived words like humble, where it belongs, or by influence of crumb. Related: Crumbled; crumbling.
crumby (adj.) Look up crumby at Dictionary.com
1731, "full of crumbs," from crumb + -y (2). Overlapping somewhat with crummy, but generally restricted to the more literal senses.
crummy (adj.) Look up crummy at Dictionary.com
1560s, "easily crumbled;" 1570s, "like bread," from crumb + -y (2). The second sense probably accounts for 18c. (and later in dialects) use, of a woman, "attractively plump, full-figured, buxom." Slang meaning "shoddy, filthy, inferior, poorly made" in use by 1859, probably is from the first sense, but influenced by crumb in its slang sense of "louse."
crumpet (n.) Look up crumpet at Dictionary.com
1690s, perhaps from crompid cake "wafer," literally "curled-up cake" (1382; Wyclif's rendering of Hebrew raqiq in Ex. 29:23), from crompid, past participle of crumpen "curl up." Alternative etymology is from Celtic (compare Breton krampoez "thin, flat cake"). Slang meaning "woman regarded as a sex object" is first recorded 1936.
crumple (v.) Look up crumple at Dictionary.com
c.1300, crumplen, frequentative of crumpen "to curl up" (from Old English crump "bent, crooked"). Related: Crumpled; crumpling.
crunch (v.) Look up crunch at Dictionary.com
1814, from craunch (1630s), probably of imitative origin. Related: Crunched; crunching. The noun is 1836, from the verb; the sense of "critical moment" was popularized 1939 by Winston Churchill, who had used it in his 1938 biography of Marlborough.
crunchy (adj.) Look up crunchy at Dictionary.com
1892, from crunch + -y (2). Student slang sense of "annoyingly intense about health or environmental issues" is by 1990, short for crunchy granola (considered as natural and wholesome); not entirely pejorative at first. Related: Crunchiness.
crunk (n.) Look up crunk at Dictionary.com
by 1999, style of popular music developed in U.S. South in 1990s; often said to be a contraction of crazy drunk. It was used early in a sense of "cool, good."
crusade (n.) Look up crusade at Dictionary.com
1706, respelling of croisade (1570s), from Middle French croisade (16c.), Spanish cruzada, both from Medieval Latin cruciata, past participle of cruciare "to mark with a cross," from Latin crux (genitive crucis) "cross." Other Middle English forms were croiserie, creiserie. Figurative sense of "campaign against a public evil" is from 1786.
crusade (v.) Look up crusade at Dictionary.com
1732, from crusade (n.). Related: Crusaded; crusading.
crusader (n.) Look up crusader at Dictionary.com
1743, from crusade + -er (1). Earlier was croisader, from French croisadeur.
cruse (n.) Look up cruse at Dictionary.com
"small vessel for liquids," early 15c., perhaps related to Old Norse krus "pot, tankard," from a general Germanic root of unknown origin. Compare Middle Dutch cruese, Dutch kroes "cup, pot, mug," Middle Low German krus, Danish krus "mug, jug," German Krause "jug, mug."
crush (v.) Look up crush at Dictionary.com
mid-14c., from Old French cruissir (Modern French écraser), variant of croissir "to gnash (teeth), crash, break," perhaps from Frankish *krostjan "to gnash" (cognates: Gothic kriustan, Old Swedish krysta "to gnash"). Figurative sense of "to humiliate, demoralize" is c.1600. Related: Crushed; crushing. Italian crosciare, Catalan cruxir, Spanish crujirare "to crack" are Germanic loan-words.
crush (n.) Look up crush at Dictionary.com
1590s, "act of crushing," from crush (v.). Meaning "thick crowd" is from 1806. Sense of "person one is infatuated with" is first recorded 1884; to have a crush on is from 1913.
crust (v.) Look up crust at Dictionary.com
late 14c.; see crust (n.). Related: Crusted; crusting.
crust (n.) Look up crust at Dictionary.com
early 14c., "hard outer part of bread," from Old French crouste (13c., Modern French croûte) and directly from Latin crusta "rind, crust, shell, bark," from PIE *krus-to- "that which has been hardened," from root *kreus- "to begin to freeze, form a crust" (cognates: Sanskrit krud- "make hard, thicken;" Avestan xruzdra- "hard;" Greek krystallos "ice, crystal," kryos "icy cold, frost;" Lettish kruwesis "frozen mud;" Old High German hrosa "ice, crust;" Old English hruse "earth;" Old Norse hroðr "scurf"). Meaning "outer shell of the earth" is from 1550s.
Crustacea (n.) Look up Crustacea at Dictionary.com
1814, Modern Latin neuter plural of crustaceus (animalia), literally "having a crust or shell," from Latin crusta "crust, rind, bark, hard shell" (see crust (n.)). Taken as a zoological classification by Lamarck, 1801; Cuvier (1798) had les insectes crustacées.
crustacean (n.) Look up crustacean at Dictionary.com
1835, from Crustacea the class name. As an adjective, 1858 (earlier was crustaceous, 1640s).
crustation (n.) Look up crustation at Dictionary.com
mid-17c., noun of action from crust (v.).
crusty (adj.) Look up crusty at Dictionary.com
c.1400, from crust (n.) + -y (2). Figurative use, of persons, "short-tempered," is from 1560s.
crutch (n.) Look up crutch at Dictionary.com
Old English crycce "crutch, staff," from Proto-Germanic *krukjo (cognates: Old Saxon krukka, Middle Dutch crucke, Old High German krucka, German Kröcke "crutch," related to Old Norse krokr "hook;" see crook). Figurative sense is first recorded c.1600. As a verb, from 1640s. Italian gruccia "crutch," crocco "hook" are Germanic loan-words.
crux (n.) Look up crux at Dictionary.com
1814, "cross," from Latin crux "cross" (see cross (n.)). Figurative use for "a central difficulty," is older, from 1718; perhaps from Latin crux interpretum "a point in a text that is impossible to interpret," in which the literal sense is something like "crossroads of interpreters." Extended sense of "central point" is from 1888.
cry (v.) Look up cry at Dictionary.com
early 13c., "beg, implore," from Old French crier, from Vulgar Latin *critare, from Latin quiritare "to wail, shriek" (source of Italian gridare, Old Spanish cridar, Spanish and Portuguese gritar), of uncertain origin; perhaps a variant of quirritare "to squeal like a pig," from *quis, echoic of squealing, despite ancient folk etymology that traces it to "call for the help of the Quirites," the Roman constabulary. The meaning was extended 13c. to weep, which it largely replaced by 16c. Related: Cried; crying.

Most languages, in common with English, use the general word for "cry out, shout, wail" to also mean "weep, shed tears to express pain or grief." Romance and Slavic, however, use words for this whose ultimate meaning is "beat (the breast)," compare French pleurer, Spanish llorar, both from Latin plorare "cry aloud," but probably originally plodere "beat, clap the hands." Also Italian piangere (cognate with French plaindre "lament, pity") from Latin plangere, originally "beat," but especially of the breast, as a sign of grief. U.S. colloquial for crying out loud is 1924, probably another euphemism for for Christ's sake.
cry (n.) Look up cry at Dictionary.com
late 13c., from cry (v.).
crybaby (n.) Look up crybaby at Dictionary.com
1851, American English, from cry + baby (n.).
cryo- Look up cryo- at Dictionary.com
word-forming element meaning "very cold, freezing," from Latinized form of Greek kryo-, comb. form of kryos "icy cold," related to kryeros "chilling" (see crust (n.)).
cryogenic (adj.) Look up cryogenic at Dictionary.com
1902, from cryogen "freezing mixture" (1875), from cryo- "freezing" + -genic "having to do with production" (see genus). Related: Cryogenics (1958).
crypt (n.) Look up crypt at Dictionary.com
early 15c., "grotto, cavern," from Latin crypta "vault, cavern," from Greek krypte (short for krypte kamara "hidden vault"), fem. of kryptos "hidden," verbal adjective from kryptein "to hide," from PIE *krau- "to conceal, hide" (cognates: Old Church Slavonic kryjo, kryti "to hide"). Meaning "underground burial vault or chapel in a church" first attested 1789.
cryptic (adj.) Look up cryptic at Dictionary.com
1630s, "hidden, occult, mystical," from Late Latin crypticus, from Greek kryptikos "fit for concealing," from kryptos "hidden" (see crypt). Meaning "mysterious, enigmatic" is recorded from 1920. Related: Cryptically.
crypto- Look up crypto- at Dictionary.com
before vowels crypt-, word-forming element meaning "secret" or "hidden," used in forming English words since at least 1760, from Latinized form of Greek kryptos "hidden, concealed, secret" (see crypt; the Greek comb. form was krypho-). Crypto-fascist is attested from 1937; crypto-communist from 1946.
cryptogram (n.) Look up cryptogram at Dictionary.com
1880, from crypto- + gram "word, letter." A modern word coined in English; though the elements are Greek, the ancient Greeks would find it barbarous.
cryptography (n.) Look up cryptography at Dictionary.com
1650s, from French cryptographie or directly from Modern Latin cryptographia, from Greek kryptos "hidden" (see crypt) + -graphy. Related: Cryptograph; cryptographer.
cryptology (n.) Look up cryptology at Dictionary.com
1640s, from crypto- + -ology.
cryselephantine (adj.) Look up cryselephantine at Dictionary.com
1827, from Greek khryselephantinos "of gold and ivory," applied to statues overlaid with gold and ivory, such as Athene Parthenos and Olympian Zeus.
crystal (n.) Look up crystal at Dictionary.com
Old English cristal "clear ice, clear mineral," from Old French cristal (12c., Modern French crystal), from Latin crystallus "crystal, ice," from Greek krystallos, from kryos "frost," from PIE root *kru(s)- "hard, hard outer surface" (see crust). Spelling adopted the Latin form 15c.-17c. The mineral has been so-called since Old English; it was regarded by the ancients as a sort of fossilized ice. As a shortened form of crystal-glass it dates from 1590s. As an adjective, from late 14c.
crystalline (adj.) Look up crystalline at Dictionary.com
late 14c., from Old French cristalin "like crystal" (Modern French crystallin), from Latin crystallinus, from Greek krystallinos "of crystal," from krystallos (see crystal).
crystallisation (n.) Look up crystallisation at Dictionary.com
chiefly British English spelling of crystallization; for spelling, see -ize.
crystallization (n.) Look up crystallization at Dictionary.com
1660s, noun of action from crystallize + -ation. Figurative use is attested from 1842.
crystallize (v.) Look up crystallize at Dictionary.com
1590s, from crystal + -ize. Figurative use is from 1660s. Related: Crystallized; crystallizing.
crystallized (adj.) Look up crystallized at Dictionary.com
c.1600, past participle adjective from crystallize. Of fruit, etc., from 1875.
cub (n.) Look up cub at Dictionary.com
1520s, cubbe "young fox," of unknown origin; perhaps from Old Irish cuib "whelp," or from Old Norse kobbi "seal." Extended to the young of bears, lions, etc., after 1590s. The native word was whelp. Cub Scout is from 1922.
Cuba Look up Cuba at Dictionary.com
said to be from Taino (Arawakan) Cubanacan, the name of the people who occupied the island. Related: Cuban (1829), Cuban heel (1908); Cuban Missile Crisis (October 16-28, 1962).
cubby (n.) Look up cubby at Dictionary.com
1868, short for cubbyhole.
cubbyhole (n.) Look up cubbyhole at Dictionary.com
1825, the first element possibly from a diminutive of cub "stall, pen, cattle shed, coop, hutch" (1540s), a dialect word with apparent cognates in Low German (such as East Frisian kubbing, Dutch kub). Or related to cuddy "small room, cupboard" (1793), originally "small cabin in a boat" (1650s), from Dutch kajuit, from French cahute. Or perhaps simply a children's made-up word.
cube (n.) Look up cube at Dictionary.com
1550s, from Middle French cube (13c.) and directly from Latin cubus, from Greek kybos "a cube, a six-sided die, vertebra," perhaps from PIE root *keu(b)- "to bend, turn." Mathematical sense is from 1550s in English (it also was in the ancient Greek word: the Greeks threw with three dice; the highest possible roll was three sixes).