corrigible (adj.)
mid-15c., from Middle French corrigible, from Medieval Latin corrigibilis "that which can be corrected," from Latin corrigere (see correct). Related: Corrigibility.
corroborate (v.)
1530s, "to give (legal) confirmation to," from Latin corroboratus, past participle of corroborare "to strengthen, invigorate," from com- "together" or "thoroughly" (see com-) + roborare "to make strong," from robur, robus "strength," (see robust).

Meaning "to strengthen by evidence, to confirm" is from 1706. Sometimes in early use the word also has its literal Latin sense, especially of medicines. Related: Corroborated; corroborating; corroborative.
corroboration (n.)
mid-15c., "strengthening, support," from Late Latin corroborationem (nominative corroboratio), noun of action from past participle stem of Latin corroborare "to strengthen" (see corroborate). Meaning "confirmation" attested by 1768.
corrode (v.)
c.1400, from Old French corroder (14c.) or directly from Latin corrodere "to gnaw to bits, wear away," from com-, intensive prefix (see com-), + rodere "to gnaw" (see rodent). Related: Corroded; corroding.
corrosion (n.)
c.1400, from Middle French corrosion or directly from Latin corrosionem (nominative corrosio), noun of action from past participle stem of corrodere (see corrode).
corrosive (adj.)
late 14c., from Old French corrosif (13c.), from corroder (see corrode).
corrugate (v.)
1620s; implied earlier as a past participle adjective (early 15c.), from Latin corrugatus, past participle of corrugare "to wrinkle very much," from com-, intensive prefix (see com-), + rugare "to wrinkle," of unknown origin.
corrugated (adj.)
1620s, "wrinkled" (of skin, etc.), past participle adjective from corrugate. Meaning "bent into curves or folds" (of iron, cardboard, etc., for elasticity and strength) is from 1853.
corrugation (n.)
1520s, from Latin *corrugationem, noun of action from past participle stem of corrugare (see corrugate).
corrupt (adj.)
mid-14c., from Old French corropt "unhealthy, corrupt; uncouth" (of language), and directly from Latin corruptus, past participle of corrumpere "to destroy; spoil," figuratively "corrupt, seduce, bribe," from com-, intensive prefix (see com-), + rup-, past participle stem of rumpere "to break" (see rupture (n.)). Related: Corruptly; corruptness.
corrupt (v.)
mid-14c., "contaminate, impair the purity of," from Latin corruptus, past participle of corrumpere (see corrupt (adj.)). Late 14c. as "pervert the meaning of," also "putrefy." Related: Corrupted; corrupting.
corruptible (adj.)
mid-14c., of material things, from Old French corroptible (14c.), from Late Latin corruptibilis "liable to decay, corruptible," from past participle stem of corrumpere (see corrupt (adj.)). Of persons, from 1670s.
corruption (n.)
mid-14c., of material things, especially dead bodies, also of the soul, morals, etc., from Latin corruptionem (nominative corruptio), noun of action from past participle stem of corrumpere (see corrupt). Of public offices from early 15c.; of language from late 15c.
corsage (n.)
late 15c., "size of the body," from Old French cors "body" (see corpse); the meaning "body of a woman's dress, bodice" is from 1818 in fashion plates translated from French; 1843 in a clearly English context. Sense of "a bouquet worn on the bodice" is 1911, American English, apparently from French bouquet de corsage "bouquet of the bodice."
corsair (n.)
1540s, from Middle French corsaire (15c.), from Provençal cursar, Italian corsaro, from Medieval Latin cursarius "pirate," from Latin cursus "course, a running," from currere "to run" (see current (adj.)). Meaning of the Medieval Latin verb evolved from "course" to "journey" to "expedition" to an expedition specifically for plunder.
corse (n.)
mid-13c., from Old French cors, from Latin corpus "body" (see corps for history and development). Archaic from 16c.
corset (n.)
c.1300, "kind of laced bodice," from Old French corset (13c.) "bodice, tunic," diminutive of cors "body" (see corps). Meaning "stiff supporting and constricting undergarment" is from 1795.
cort (n.)
obsolete form of court.
cortege (n.)
1640s, "train of attendants," from French cortège (16c.), from Italian corteggio "retinue," from corte "court," from Latin cohortem (see court (n.)).
cortes (n.)
1660s, legislative houses of Spain or Portugal, from Spanish and Portuguese plural of corte, from Latin cortem (see court (n.)).
cortex (n.)
1650s, "outer shell, husk," from Latin cortex "bark of a tree" (see corium). Specifically of the brain, first recorded 1741.
cortical (adj.)
1670s, from Modern Latin corticalis, from cortex "bark of a tree" (see cortex).
corticosteroid (n.)
by 1945, from cortico-, word-forming element from comb. form of Latin cortex "bark of a tree" (see cortex), applied since c.1890 to various surface structures of plants, animals, or organs + steroid. So called because they are produced in the adrenal cortex. Related: Corticosterone.
cortisol (n.)
hydrocortisone, 1953, from cortisone + -ol.
cortisone (n.)
1949, coined by its discoverer, Dr. Edward C. Kendall, shortening of chemical name, 17-hydroxy-11 dehydrocorticosterone, ultimately from Latin corticis (genitive of cortex; see cortex). So called because it was obtained from the "cortex" of adrenal glands; originally called Compound E (1936).
corundum (n.)
"very hard mineral," 1728, from Anglo-Indian, from Tamil kurundam "ruby sapphire" (Sanskrit kuruvinda), of unknown origin.
coruscate (v.)
1705, from Latin coruscatus, past participle of coruscare "to vibrate, glitter," perhaps from PIE *(s)ker- (2) "leap, jump about" (compare scherzo). Related: Coruscated; coruscating.
coruscation (n.)
late 15c., from Latin coruscationem (nominative coruscatio), noun of action from past participle stem of coruscare "to vibrate, glitter" (see coruscate).
corvee (n.)
mid-14c., "day's unpaid labor due to a lord by vassals under French feudal system" (abolished 1776), from Old French corvee (12c.), from Late Latin corrogata (opera) "requested work," from fem. past participle of Latin corrogare, from com- "with" (see com-) + rogare "to ask" (see rogation).
corvette (n.)
1630s, also corvet, from French corvette "small, fast frigate" (15c.), perhaps from Middle Dutch korver "pursuit ship," or Middle Low German korf meaning both a kind of boat and a basket, or from Latin corbita (navis) "slow-sailing ship of burden, grain ship" from corbis "basket" (Gamillscheg is against this). The U.S. sports car was so named September 1952, after the warship, on a suggestion by Myron Scott, employee of Campbell-Ewald, Chevrolet's advertising agency. Italian corvetta, Spanish corbeta are French loan-words.
Corydon
traditional poetic name for a shepherd or rustic swain, from Latin Corydon, from Greek Korydon, name of a shepherd in Theocritus and Virgil.
coryza (n.)
1630s, from medical Latin, from Greek koryza "running at the nose."
cosa nostra
1963, "the Mafia in America," from Italian, literally "this thing of ours."
cosecant (n.)
1706, from co, short for complement, + secant.
cosh (n.)
"stout stick," 1869, of unknown origin.
cosher (n.)
1630s, phonetic spelling of Irish coisir "feast, entertainment."
cosign (v.)
also co-sign, by 1944, from co- + sign (v.). Related: Cosigned; cosigning.
cosigner (n.)
also co-signer, 1946, agent noun from cosign; earlier in this sense was cosignatory (1865).
cosine (n.)
1630s, from co. sinus, abbreviation of Medieval Latin complementi sinus (see complement + sine).
cosmetic (n.)
c.1600, "art of beautifying," from Latinized form of Greek kosmetike (tekhne) "the art of dress and ornament," from fem. of kosmetikos (see cosmetic (adj.)). Meaning "a preparation for beautifying" attested from 1640s (now often cosmetics).
cosmetic (adj.)
1640s, from French cosmétique (16c.), from Greek kosmetikos "skilled in adornment or arrangement," from kosmein "to arrange, adorn," from kosmos "order" (see cosmos). Figurative sense of "superficial" is from 1955. Related: Cosmetically.
cosmetologist (n.)
1926, American English, from cosmetology + -ist. Won out over cosmetician.
cosmetology (n.)
1855, from French cosmétologie, from Latinized form of Greek kosmetos (see cosmetic) + -ology.
cosmic (adj.)
1640s, from cosmo- + -ic. Originally "of this world" (which was the sense of Greek kosmikos); meaning "of the universe" is from 1846. Cosmical is attested from 1580s.
cosmo-
before a vowel cosm-, word-forming element from Latinized form of Greek kosmos (see cosmos). In older use, "the world, the universe;" since 1950s, especially of outer space.
cosmogony (n.)
1690s as "a theory of the creation;" 1766 as "the creation of the universe," from Latinized form of Greek kosmogonia "creation of the world," from kosmos "world, universe" (see cosmos) + -gonia "a begetting," from gonos "birth" (see genus).
cosmography (n.)
"description of the universe," mid-15c., from cosmo- + -graphy. Related: Cosmographic.
cosmological (adj.)
1825, from cosmology + -ical.
cosmology (n.)
1650s, from Modern Latin cosmologia, from Greek kosmos (see cosmos) + -logia "discourse" (see -logy). Related: Cosmological; cosmologist.
They cannot scare me with their empty spaces
Between stars--on stars where no human race is.
I have it in me so much nearer home
To scare myself with my own desert places.

[Robert Frost, from "Desert Places," 1936]
cosmonaut (n.)
1959, Englishing of Russian kosmonavt, ultimately from Greek kosmos (see cosmos) + nautes "sailor" (see naval).