core (v.) Look up core at Dictionary.com
mid-15c., from core (n.). Related: Cored; coring.
core (n.) Look up core at Dictionary.com
late 14c., probably from Old French coeur "core of fruit, heart of lettuce," literally "heart," from Latin cor "heart," from PIE root *kerd- "heart." Nuclear reactor sense is from 1949.
corgi (n.) Look up corgi at Dictionary.com
1926, from Welsh corgi, from cor "dwarf" + ci "dog" (from PIE root *kwon- "dog").
coriander (n.) Look up coriander at Dictionary.com
late 14c., from Old French coriandre (14c.), from Latin coriandrum, from Greek koriannon, often said by botanists to be related to koris "bedbug" from the bad smell of the unripe fruit, or perhaps a non-Indo-European word conformed to the Greek insect name.
Corinna Look up Corinna at Dictionary.com
fem. proper name, from Latin Corinna, from Greek Korinna, diminutive of kore "maiden," also an epithet of Persephone; see Kore.
Corinth Look up Corinth at Dictionary.com
city in Greece, from Latin Corinthus, from Greek Korinthos, from Pelasgian *kar- "point, peak." The -nthos identifies it as being from the lost pre-IE language of Greece.
Corinthian Look up Corinthian at Dictionary.com
1650s as an architectural order, from Corinth, the ancient Greek city-state. In classical times Corinth was notorious for its luxury and licentiousness among the Greek states (and for not scorning trade and profit); hence Corinthian, noun and adjective, in various slang or colloquial sense in English, especially "a swell, a man about town" (early to mid-19c. but especially in the 1820s).
Coriolis effect (n.) Look up Coriolis effect at Dictionary.com
1969 (earlier Coriolis force, 1923, and other references back to 1912), from the name of French scientist Gaspard Gustave de Coriolis (1792-1843) who described it c. 1835.
corium (n.) Look up corium at Dictionary.com
1650s, from Latin corium "skin, hide, leather," related to cortex "bark," scortum "skin, hide," from PIE root *sker- (1) "to cut" (compare Sanskrit krtih "hide;" Old Church Slavonic scora "skin," Russian skora "hide," kora "bark;" Welsh corwg "boat made with leather skins," all from the same root). Related: Coriaceous.
cork (v.) Look up cork at Dictionary.com
1570s, "to put a cork sole on a shoe," from cork (n.)). Meaning "to stop with a cork" is from 1640s. Related: Corked; corking.
Cork Look up Cork at Dictionary.com
place in Ireland, Englished from Irish Corcaigh, from corcach "marsh."
cork (n.) Look up cork at Dictionary.com
c. 1300, from Spanish alcorque "cork sole," probably from earlier Spanish corcho, from Latin quercus "oak" (see Quercus) or cortex (genitive corticis) "bark" (see corium).
corker (n.) Look up corker at Dictionary.com
1837, slang, something that "settles" a debate, discussion, conflict, etc.; hence "something astonishing" (1880s). Probably an agent noun from cork (v.) on the notion is of putting a cork in a bottle as an act of finality.
corkscrew (n.) Look up corkscrew at Dictionary.com
1720, from cork (n.) + screw (n.). Given various figurative or extended senses from c. 1815; the verb is attested from 1837.
corky (adj.) Look up corky at Dictionary.com
early 17c., "light, buoyant" (as cork is), hence, figuratively, of persons "lively;" from cork (n.) + -y (2). Of bottled liquors or wine, "having a flavor of cork," from 1889.
corm (n.) Look up corm at Dictionary.com
1570s, from French corme, from Latin cornum "cornel-cherry" (but applied to service-berries in French); see cornel.
cormorant (n.) Look up cormorant at Dictionary.com
early 14c., from Old French cormarenc (12c., Modern French cormoran), from Late Latin corvus marinus "sea raven" + Germanic suffix -enc, -ing. The -t in English probably is from confusion with words in -ant. It has a reputation for voracity.
corn (n.1) Look up corn at Dictionary.com
"grain," Old English corn, from Proto-Germanic *kurnam "small seed" (source also of Old Frisian and Old Saxon korn "grain," Middle Dutch coren, German Korn, Old Norse korn, Gothic kaurn), from PIE root *gre-no- "grain." The sense of the Old English word was "grain with the seed still in" (as in barleycorn) rather than a particular plant.

Locally understood to denote the leading crop of a district. Restricted to the indigenous "maize" in America (c. 1600, originally Indian corn, but the adjective was dropped), usually wheat in England, oats in Scotland and Ireland, while Korn means "rye" in parts of Germany. Maize was introduced to China by 1550, it thrived where rice did not grow well and was a significant factor in the 18th century population boom there. Cornflakes first recorded 1907. Corned beef so called for the "corns" or grains of salt with which it is preserved; from verb corn "to salt" (1560s).
corn (n.2) Look up corn at Dictionary.com
"hardening of skin," early 15c., from Old French corne (13c.) "horn (of an animal)," later, "corn on the foot," from Latin cornu "horn," from PIE root *ker- (1) "horn; head."
corn row (n.) Look up corn row at Dictionary.com
also cornrow, 1769 as "a row of corn," by 1971 as a style of hair braids. The verb in this sense also is from 1971.
cornea (n.) Look up cornea at Dictionary.com
late 14c., from Medieval Latin cornea tela "horny web or sheath," from Latin cornu (genitive cornus) "horn," from PIE root *ker- (1) "horn; head." So called for its consistency. Related: Corneal.
cornel (n.) Look up cornel at Dictionary.com
a type of tree or shrub with an edible fruit, 1550s, from German cornel-baum, from Old High German cornul, from Medieval Latin cornolium, from French cornouille, from Vulgar Latin *cornuculum, from Latin cornum "cornel-cherry," perhaps related to Greek kerasos "cherry." Old English also had borrowed the Latin word, in corntreow. The plant was noted for its hard wood, which was favored by the ancients for making shafts of spears and arrows.
cornelian (n.) Look up cornelian at Dictionary.com
"red variety of chalcedony," a variant of corneline (c. 1400), from Old French corneline (Modern French cornaline), diminutive of corneola, probably from Vulgar Latin *cornea, from Latin cornus, name of a type of berry (see cornel).
Cornelius Look up Cornelius at Dictionary.com
masc. proper name, from the name of a Roman gens.
corner (v.) Look up corner at Dictionary.com
late 14c., "to furnish with corners," from corner (n.). Meaning "to turn a corner," as in a race, is 1860s; meaning "drive (someone) into a corner" is American English from 1824. Commercial sense is from 1836. Related: Cornered; cornering.
corner (n.) Look up corner at Dictionary.com
late 13c., from Anglo-French cornere (Old French corniere), from Old French corne "horn, corner," from Vulgar Latin *corna, from Latin cornua, plural of cornu "projecting point, end, horn," from PIE root *ker- (1) "horn; head." Replaced Old English hyrne. As an adjective, from 1530s. To be just around the corner in the extended sense of "about to happen" is by 1905.
cornerstone (n.) Look up cornerstone at Dictionary.com
late 13c., from corner (n.) + stone (n.). The figurative use is from early 14c.
I endorse without reserve the much abused sentiment of Governor M'Duffie, that "Slavery is the corner-stone of our republican edifice;" while I repudiate, as ridiculously absurd, that much lauded but nowhere accredited dogma of Mr. Jefferson, that "all men are born equal." No society has ever yet existed, and I have already incidentally quoted the highest authority to show that none ever will exist, without a natural variety of classes. [James H. Hammond, "Letter to an English Abolitionist" 1845]
cornet (n.) Look up cornet at Dictionary.com
c. 1400, "A wind instrument made of wood and provided with six finger holes" [Middle English Dictionary], from Old French cornet (14c.) "a small horn," diminutive of corn "a horn," from Latin cornu "horn," from PIE root *ker- (1) "horn; head." Modern use is short for cornet-à-pistons "cornet with pistons."
The quality of the tone is penetrating and unsympathetic, by no means equal to that of the trumpet, for which it is commonly substituted. ["cornet" entry in "Century Dictionary and Cyclopedia," 1902]
cornfield (n.) Look up cornfield at Dictionary.com
late 13c., from corn (n.1) + field (n.).
cornhole (v.) Look up cornhole at Dictionary.com
synonymous with "do anal intercourse" by 1930s, apparently the reference is to a game played in the farming regions of the Ohio Valley in the U.S. from 19c., in which players take turns throwing a small bag full of feed corn at a raised platform with a hole in it; from corn (n.1) + hole (n.).
cornice (n.) Look up cornice at Dictionary.com
1560s, from Middle French corniche (16c.) or directly from Italian cornice "ornamental molding along a wall," perhaps from Latin coronis "curved line, flourish in writing," from Greek koronis "curved object" (see crown). Perhaps influenced by (or even from) Latin cornicem, accusative of cornix "crow" (compare corbel).
Cornish (adj.) Look up Cornish at Dictionary.com
from first element of Cornwall + -ish.
cornmeal (n.) Look up cornmeal at Dictionary.com
1782, from corn (n.1) + meal (n.2).
cornucopia (n.) Look up cornucopia at Dictionary.com
c. 1500, from Late Latin cornucopia, from Latin cornu copiae "horn of plenty," originally the horn of the goat Amalthea, who nurtured the infant Zeus. See horn (n.) and copious.
Cornwall Look up Cornwall at Dictionary.com
Old English Cornwalas (891), Cornubia (c.705), "the Corn Welsh," from original Celtic tribal name, *Cornowii, Latinized as Cornovii, literally "peninsula people, the people of the horn," from Celtic kernou "horn," hence "headland," from PIE *ker- (1) "horn; head, uppermost part of the body" (see horn (n.)), in reference to the long "horn" of land on which they live. To this the Anglo-Saxons added the plural of Old English walh "stranger, foreigner," especially if Celtic (see Welsh).
corny (adj.) Look up corny at Dictionary.com
1570s, "full of corn, pertaining to corn, from corn (n.1) + -y (2). Chaucer used it of ale (late 14c.), perhaps to mean "malty." American English slang "old-fashioned, sentimental" is from 1932 (first attested in "Melody Maker"), perhaps originally "something appealing to country folk" (corn-fed in the same sense is attested from 1929). Related: Cornily; corniness.
There's an element of truth in every idea that lasts long enough to be called corny. [attributed c. 1962 to songwriter Irving Berlin (1888-1989)]
corolla (n.) Look up corolla at Dictionary.com
1670s, "crown," from Latin corolla, diminutive of corona "crown, garland" (see crown (n.)). Botanical use is from 1753.
corollary (n.) Look up corollary at Dictionary.com
late 14c., from Late Latin corollarium "a deduction, consequence," from Latin corollarium, originally "money paid for a garland," hence "gift, gratuity, something extra;" and in logic, "a proposition proved from another that has been proved." From corolla "small garland," diminutive of corona "crown" (see crown (n.)).
corollate (adj.) Look up corollate at Dictionary.com
1864, "having a corolla," from corolla + -ate.
corona (n.) Look up corona at Dictionary.com
1650s, from Latin corona "crown, garland," from suffixed form of PIE root *sker- (2) "to turn, bend."
coronal (adj.) Look up coronal at Dictionary.com
1540s, "pertaining to a crown" (or, later, to one of the extended senses of Latin corona), from French coronal (16c.), from Latin coronalis, from corona (see crown (n.)).
coronary (adj.) Look up coronary at Dictionary.com
c. 1600, "suitable for garlands," from Latin coronarius "of a crown," from corona "crown" (see crown (n.)). Anatomical use is 1670s for structure of blood vessels that surround the heart like a crown. Short for coronary thrombosis it dates from 1955. Coronary artery is recorded from 1741.
coronation (n.) Look up coronation at Dictionary.com
late 14c., from Late Latin coronationem (nominative coronatio) "a crowning," from past participle stem of Latin coronare "to crown," from corona "crown" (see crown (n.)).
coronel (n.) Look up coronel at Dictionary.com
obsolete form of colonel.
coroner (n.) Look up coroner at Dictionary.com
late 12c., from Anglo-French curuner, from Latin custos placitorum coronae, originally the title of the officer with the duty of protecting the property of the royal family, from Latin corona, literally "crown" (see crown (n.)). The duties of the office gradually narrowed and by 17c. the chief function was to determine the cause of death in cases not obviously natural.
coronet (n.) Look up coronet at Dictionary.com
"a small crown," late 15c., from Old French coronete, diminutive of corone "a crown," from Latin corona "crown" (see crown (n.)).
corporal (adj.) Look up corporal at Dictionary.com
"of or belonging to the body," late 14c., from Old French corporal (12c., Modern French corporel) "of the body, physical, strong," from Latin corporalis "pertaining to the body," from corpus (genitive corporis) "body" (from PIE root *kwrep- "body, form, appearance"). Corporal punishment "punishment of the body" (as opposed to fine or loss of rank or privilege) is from 1580s. Related: Corporality.
corporal (n.) Look up corporal at Dictionary.com
lowest noncommissioned army officer, 1570s, from Middle French corporal, from Italian caporale "a corporal," from capo "chief, head," from Latin caput "head" (from PIE root *kaput- "head"). So called because he was in charge of a body of troops. Perhaps influenced by Italian corpo, from Latin corps "body." Or corps may be the source and caput the influence, as the OED suggests.
corporate (adj.) Look up corporate at Dictionary.com
early 15c., "united in one body," from Latin corporatus, past participle of corporare "form into a body," from corpus (genitive corporis) "body" (from PIE root *kwrep- "body, form, appearance").
corporation (n.) Look up corporation at Dictionary.com
mid-15c., "persons united in a body for some purpose," from such use in Anglo-Latin, from Late Latin corporationem (nominative corporatio), noun of action from past participle stem of Latin corporare "embody, form into a body," from corpus (genitive corporis) "body" (from PIE root *kwrep- "body, form, appearance"). Meaning "legally authorized entity" (including municipal governments and modern business companies) is from 1610s.