ceremonial (adj.) Look up ceremonial at Dictionary.com
c.1400, "belonging to (religious) ritual," also as a noun, "a ceremonial practice," from Late Latin caerimonialis "pertaining to ceremony," from caerimonia (see ceremony). Related: Ceremonially.
ceremonious (adj.) Look up ceremonious at Dictionary.com
1550s, from Middle French cérémonieux or directly from Late Latin caerimoniosus, from Latin caerimonia (see ceremony). Meaning "full of show and ceremony" is from 1610s. Related: Ceremoniously; ceremoniousness.
ceremony (n.) Look up ceremony at Dictionary.com
late 14c., cerymonye, from Old French ceremonie and directly from Medieval Latin ceremonia, from Latin caerimonia "holiness, sacredness; awe; reverent rite, sacred ceremony," an obscure word, possibly of Etruscan origin, or a reference to the ancient rites performed by the Etruscan pontiffs at Caere, near Rome. Introduced in English by Wyclif.
Ceres Look up Ceres at Dictionary.com
Roman goddess of agriculture (identified with Greek Demeter), also the name given to the first-found and largest asteroid (discovered 1801); see cereal. Her festival, Cerealia, was April 10.
Cereus (n.) Look up Cereus at Dictionary.com
cactus genus, 1730, from Latin cereus "waxen, waxy," from cera "wax" (see cere (n.)). So called from its shape, which suggests a candle.
ceriph (n.) Look up ceriph at Dictionary.com
"lines at the top or bottom of a letter;" see sans-serif.
cerise (n.) Look up cerise at Dictionary.com
shade of red, 1858, from French cerise, from rouge-cerise "cherry-red," from cerise "cherry" (see cherry).
cerium (n.) Look up cerium at Dictionary.com
element, first isolated in pure form in 1875, named for ceria, the name of the earth from which it was taken, which was discovered in 1803 and named by Berzelius and Hissinger for Ceres, the minor planet, which had been discovered in 1801 and named for the Roman goddess Ceres.
cero- Look up cero- at Dictionary.com
word-forming element meaning "waxy," from Latinized form of Greek kero-, comb. form of keros (see cere (n.)).
ceromancy (n.) Look up ceromancy at Dictionary.com
"divination by means of melted wax dripped in water" (the shapes supposedly previsioning a future spouse, etc.), 1650s, from French ceromancie, Medieval Latin ceromantia; see cere (n.) + -mancy.
cert Look up cert at Dictionary.com
colloquial abbreviation of certain or certainty, attested from 1889.
certain (adj.) Look up certain at Dictionary.com
c.1300, "determined, fixed," from Old French certain "reliable, sure, assured" (12c.), from Vulgar Latin *certanus, from Latin certus "sure, fixed, settled, determined" (also source of Italian certo, Spanish cierto), originally a variant past participle of cernere "to distinguish, decide," literally "to sift, separate" (see crisis).

Of persons, "full of confidence in one's knowledge or judgment," from mid-14c. Euphemistic use (of a certain age, etc.) attested from mid-18c. Certainer, certainest were common to c.1750, but have fallen from proper use for some reason. Expression for certain "assuredly" is attested by early 14c.
certainly (adv.) Look up certainly at Dictionary.com
c.1300, in all main modern senses, from certain + -ly (2).
certainty (n.) Look up certainty at Dictionary.com
c.1300, certeynte, "surety, pledge," from Anglo-French certeinté (late 13c.), Old French certainete "certainty," from Latin or Vulgar Latin *certanitatem (source of Old Spanish certanedad); see certain. Meaning "that which is certain" is attested from early 14c.; meaning "quality of being certain" is from mid-14c.
certes (adv.) Look up certes at Dictionary.com
mid-13c., from Old French certes, from Vulgar Latin certas, from Latin certe, adverb from certus (see certain).
certifiable (adj.) Look up certifiable at Dictionary.com
1846, from certify + -able. Meaning "so deranged as to be certifiably insane" is recorded from 1912.
certificate (n.) Look up certificate at Dictionary.com
early 15c., "action of certifying," from French certificat, from Medieval Latin certificatum "thing certified," noun use of neuter past participle of certificare (see certify). Of documents, from mid-15c., especially a document which attests to someone's authorization to practice or do something (1540s).
certificated (adj.) Look up certificated at Dictionary.com
1610s, past participle adjective from obsolete certificate (v.), from Medieval Latin certificatus, past participle of certificare (see certify).
certification (n.) Look up certification at Dictionary.com
early 15c., "notification;" mid-15c., "demonstration, proof," from Medieval Latin certificationem (nominative certificatio), noun of action from past participle stem of Late Latin certificare (see certify). Meaning "act of providing with a legal certificate" is from 1881.
certify (v.) Look up certify at Dictionary.com
mid-14c., "to declare the truth of," also "to vouch for or confirm" (an official record, etc.), from Old French certefiier "make certain, witness the truth of" (12c.), from Late Latin certificare "to certify, to make certain," from Latin certus (see certain) + root of facere "to make, do" (see factitious). Also used in Middle English in broader senses of "inform, give notice; instruct, to direct; to designate." Related: Certified; certifying. Certified public accountant attested from 1896.
certiorari Look up certiorari at Dictionary.com
legal Latin, "to be certified, to be informed or shown," from a word figuring in the opening phrase of such writs from superior to inferior courts seeking the records of a case. Passive present infinitive of certorare "to certify, inform," from certior, comp. of certus "sure" (see certain).
certitude (n.) Look up certitude at Dictionary.com
early 15c., from Middle French certitude "certainty" (16c.), from Late Latin certitudinem (nominative certitudo) "that which is certain," from Latin certus "sure, certain" (see certain).
cerulean (adj.) Look up cerulean at Dictionary.com
1660s, with -an + Latin caeruleus "blue, dark blue, blue-green," perhaps dissimilated from caelulum, diminutive of caelum "heaven, sky," of uncertain origin (see celestial). The Latin word was applied by Roman authors to the sky, the Mediterranean, and occasionally to leaves or fields. As a noun, from 1756.
cerumen (n.) Look up cerumen at Dictionary.com
"earwax," 1741, medical Latin cerumen, coined by Swiss anatomist Gaspard Bauhin (1560-1624) from Latin cera "wax" (see cere (n.)) on model of albumen; or else from Greek keroumenos "formed of wax."
cerveza (n.) Look up cerveza at Dictionary.com
Spanish for "beer," from Latin cervisia "beer" (related to Latin cerea "a Spanish beer"), from a Celtic *kerb- (compare Gaulish curmi, Old Irish cuirm, Middle Irish coirm, Welsh cwrwf, Old Cornish coref "beer"), from Proto-Celtic *kormi-, perhaps from PIE root *krem-, also source of Latin cremare "to burn" (see cremation). "Connection with ceres (as a drink from grain) is very dubious" [Tucker].
cervical (adj.) Look up cervical at Dictionary.com
1680s, "of the neck," from French cervical, from Latin cervix (see cervix). Meaning "of the neck of the womb" attested by 1860. Related: Cervically.
cervix (n.) Look up cervix at Dictionary.com
early 15c., "ligament in the neck," from Latin cervix "the neck, nape of the neck," from PIE *kerw-o-, from root *ker- (1) (see horn (n.)). Applied to various neck-like structures of the body, especially that of the uterus (by 1702), where it is shortened from medical Latin cervix uteri (17c.). Sometimes in medical writing 18c.-19c. cervix of the uterus to distinguish it from the neck sense.
Cesar Look up Cesar at Dictionary.com
Spanish form of masc. proper name Caesar.
cesarean Look up cesarean at Dictionary.com
alternative spelling of caesarian (see also æ).
cesarian Look up cesarian at Dictionary.com
alternative spelling of caesarian.
cesium (n.) Look up cesium at Dictionary.com
also caesium, rare alkaline metal, 1861, coined by Bunsen and Kirchhoff in 1860 in Modern Latin (caesium), from Latin caesius "blue-gray" (especially of eyes), in reference to the two prominent blue lines in its spectrum, by which it was first identified.
cess (n.) Look up cess at Dictionary.com
"tax, levy," 1530s, short for assess (q.v.).
cessation (n.) Look up cessation at Dictionary.com
mid-15c., cessacyoun "interruption, abdication," from Latin cessationem (nominative cessatio) "a delaying, ceasing, tarrying," noun of action from past participle stem of cessare "delay" (see cease (n.)).
cession (n.) Look up cession at Dictionary.com
late 14c., "a relinquishing," from Old French cession "cession; death" (13c.), from Latin cessionem (nominative cessio) "a giving up, surrendering," noun of action from past participle stem of cedere "to go away, yield" (see cede). Related: Cessionary.
cesspit (n.) Look up cesspit at Dictionary.com
1864, from cess (see cesspool) + pit (n.).
cesspool (n.) Look up cesspool at Dictionary.com
also cess-pool, 1670s, the first element perhaps an alteration of cistern, perhaps a shortened form of recess [Klein]; or the whole may be an alteration of suspiral (c.1400), "drainpipe," from Old French sospiral "a vent, air hole," from sospirer "breathe," from Latin suspirare "breathe deep" [Barnhart]. Meaning extended to "tank at the end of the pipe," which would account for a possible folk-etymology change in final syllable.

Other possible etymologies: Italian cesso "privy," from Latin secessus "place of retirement" (in Late Latin "privy, drain"); dialectal suspool, from suss, soss "puddle;" or cess "a bog on the banks of a tidal river."
Cestrian Look up Cestrian at Dictionary.com
1703, from Cester, Old English form of Chester, + -ian.
Cetacea (n.) Look up Cetacea at Dictionary.com
order of marine mammals containing whales, 1830, Modern Latin, from Latin cetus "any large sea creature" (whales, seals, dolphins), from Greek ketos "a whale, a sea monster," of unknown origin, + -acea. Hence cetology "the study of whales," first attested 1851 in "Moby Dick."
cetacean (n.) Look up cetacean at Dictionary.com
1836, from Cetacea, name of the order of marine mammals, + -an. As an adjective from 1839.
ceteris paribus Look up ceteris paribus at Dictionary.com
Modern Latin, literally "other things being equal."
cetyl (n.) Look up cetyl at Dictionary.com
univalent alcohol radical found in spermaceti, beeswax, etc., 1842, from Latin cetus "whale" (see Cetacea) + -yl.
Ceylon Look up Ceylon at Dictionary.com
Portuguese form of Sri Lanka (q.v.). Related: Ceylonese.
cf Look up cf at Dictionary.com
see cf.
cf. Look up cf. at Dictionary.com
abbreviation of Latin confer "compare" (see confer).
cgi Look up cgi at Dictionary.com
by 2004, initialism (acronym) for computer-generated imagery.
ch Look up ch at Dictionary.com
digraph used in Old French for the "tsh" sound. In some French dialects, including that of Paris (but not that of Picardy), Latin ca- became French "tsha." This was introduced to English after the Norman Conquest, in words borrowed from Old French such as chaste, charity, chief (adj.). Under French influence, -ch- also was inserted into Anglo-Saxon words that had the same sound (such as bleach, chest, church) which in Old English still was written with a simple -c-, and into those that had formerly been spelled with a -c- and pronounced "k" such as chin and much.

As French evolved, the "t" sound dropped out of it, so in later loan-words from France ch- has only the sound "sh-" (chauffeur, machine (n.), chivalry, etc.).

It turns up as well in words from classical languages (chaos, echo, etc.). Most uses of -ch- in Roman Latin were in words from Greek, which would be pronounced correctly as "k" + "h," as in blockhead, but most Romans would have said merely "k." Sometimes ch- is written to keep -c- hard before a front vowel, as still in modern Italian.

In some languages (Welsh, Spanish, Czech) ch- can be treated as a separate letter and words in it are alphabetized after -c- (or, in Czech and Slovak, after -h-). The sound also is heard in more distant languages (as in cheetah, chintz), and the digraph also is used to represent the sound in Scottish loch.
cha (n.) Look up cha at Dictionary.com
"tea," 1590s, also chaw, ultimately from the Mandarin ch'a "tea;" used in English alongside tea when the beverage was introduced.
cha-cha (n.) Look up cha-cha at Dictionary.com
also cha-cha-cha, type of Latin-American 3-beat ballroom dance, 1954, echoic of the music.
Chablis (n.) Look up Chablis at Dictionary.com
light, white Burgundy wine, 1660s, named for town of Chablis southeast of Paris. Made only of Chardonnay grapes. The French word chablis (16c.) is literally "deadwood," fallen from a tree through age or brought down by wind, short for bois chablis, from Old French *chableiz.
chad (n.1) Look up chad at Dictionary.com
also Mr. Chad, graffiti drawing of a head peering over a fence or wall, with the caption, "Wot, no ______?" (the U.S. version usually had "Kilroy was here"), in reaction to shortages and rationing, 1945, British, of unknown origin.