英语词源字典 - 在线词源网站

columnist (n.)[columnist 词源字典]: 1920, from column in the newspaper sense + -ist.[columnist etymology, columnist origin, 英语词源]
com-: word-forming element usually meaning "with, together," from Latin com, archaic form of classical Latin cum "together, together with, in combination," from PIE *kom- "beside, near, by, with" (compare Old English ge-, German ge-). The prefix in Latin sometimes was used as an intensive.

Before vowels and aspirates, reduced to co-; before -g-, assimilated to cog- or con-; before -l-, assimilated to col-; before -r-, assimilated to cor-; before -c-, -d-, -j-, -n-, -q-, -s-, -t-, -v- assimilated to con-.
coma (n.1): state of prolonged unconsciousness, 1640s, from Latinized form of Greek koma (genitive komatos) "deep sleep," which is of uncertain origin. A term for "coma" in Middle English was false sleep (late 14c.).
coma (n.2): "head of a comet," 1765, from Latin coma, from Greek kome "hair of the head," which is of unknown origin. Earlier in English as a botanical term for a tuft of hairs (1660s).
Comanche (n.): 1819, from Spanish, from a word in a Shoshonean language, such as Ute kimánci "enemy, foreigner." Comanchero was a 19c. name given to Hispanic and American traders who dealt with the Comanches.
comatose (adj.): 1755, from Latinized form of Greek komat-, comb. form of koma (genitive komatos; see coma) + -ose (1). Perhaps immediately from French comateux. Transferred sense of "lethargic" is from 1828.
comb (n.): Old English camb "comb, crest, honeycomb" (later Anglian comb), from Proto-Germanic *kambaz (cognates: Old Saxon and Old High German camb, German Kamm, Middle Dutch cam, Dutch kam, Old Norse kambr), literally "toothed object," from PIE *gombhos, from root *gembh- "to bite, tooth" (cognates: Greek gomphos "a molar tooth," Sanskrit gambha-s "tooth").
comb (v.): late 14c. (implied in past participle kombid), verb derived from comb (n.); replacing the former verb, Old English cemban, which however survives in unkempt. Related: Combed; combing.
combat (v.): 1560s, from Middle French combat (16c.), from Old French combattre (12c.), from Late Latin combattere, from Latin com- "with" (each other) (see com-) + battuere "to beat, fight" (see batter (v.)). Related: Combated; combating; combatted; combatting.
combat (n.): 1560s, from Middle French combat (16c.), from combattre (see combat (v.)).
combatant: mid-15c. (adj.), late 15c. (n.), from Old French combatant (Modern French combattant) "skilled at fighting, warlike" (also used as a noun in Old French), present participle adjective of combattre (see combat (v.)).
combative (adj.): 1819, from combat + -ive. In 1820s-30s, much associated with phrenology. Related: Combatively; combativeness (1815).
comber (n.): c. 1200, "one who cards wool," agent noun from comb (v.).
combination (n.): late 14c., combinacyoun, from Old French combination (14c., Modern French combinaison), from Late Latin combinationem (nominative combinatio) "a joining two by two," noun of action from past participle stem of combinare (see combine (v.)).
combine (n.): "machine that cuts, threshes and cleans grain" (short for combine harvester), 1857, from combine (v.).
combine (v.): early 15c., from Middle French combiner (14c.), from Late Latin combinare "to unite, yoke together," from Latin com- "together" (see com-) + bini "two by two," adverb from bi- "twice" (see binary). Related: Combinative; combined; combining.
combo (n.): 1929, U.S. slang, originally in entertainment (jazz groups, dance teams), short for combination.
combust: late 14c. as an adjective, "burnt," from Old French combust (14c.), from Latin combustus, past participle of combuere "to burn up, consume" (see combustion). Also an astrological term for planets when near the sun. The verb is attested from late 15c. Related: Combusted; combusting.
combustible (adj.): 1520s, from Middle French combustible, or directly from Late Latin combustibilis, from Latin combustus, past participle of combuere "to burn up, consume" (see combustion). Figurative sense is from 1640s; as a noun, from 1680s. Related: Combustibility (late 15c.).
combustion (n.): early 15c., from Old French combustion (13c.), from Latin combustionem (nominative combustio) "a burning," noun of action from past participle stem of Latin comburere "to burn up, consume," from com-, intensive prefix (see com-), + *burere, faulty separation of amburere "to burn around," actually ambi-urere, from urere "to burn, singe," from PIE root *eus- "to burn" (see ember).