conqueror (n.)youdaoicibaDictYouDict[conqueror 词源字典]
c. 1300, from Anglo-French conquerour, Old French conquereor, from Old French conquerre (see conquer). Another early form was conquestor. William the Conqueror so called from early 12c. in Anglo-Latin: Guillelmus Magus id est conquæstor rex Anglorum.[conqueror etymology, conqueror origin, 英语词源]
conquest (n.)youdaoicibaDictYouDict
early 14c., a merged word from Old French conquest "acquisition" (Modern French conquêt), and Old French conqueste "conquest, acquisition" (Modern French conquête), both from past participle of conquerre, from Vulgar Latin *conquaerere (see conquer).
conquistador (n.)youdaoicibaDictYouDict
1830, from Spanish conquistador, literally "conqueror," noun of action from conquistar "to conquer," from Vulgar Latin conquistare, from Latin conquistus, past participle of conquirere "to seek for" (see conquer).
ConradyoudaoicibaDictYouDict
masc. proper name, from Old High German Kuonrat, literally "bold in counsel," from kuon "bold" + rat "counsel" (see read (v.)).
consanguine (adj.)youdaoicibaDictYouDict
c. 1600, from French consanguin (14c.), from Latin consanguineus "of the same blood" (see consanguinity).
consanguineous (adj.)youdaoicibaDictYouDict
c. 1600, from Latin consanguineus "of the same blood" (see consanguinity).
consanguinity (n.)youdaoicibaDictYouDict
c. 1400, from Middle French consanguinité, from Latin consanguinitatem (nominative consanguinitas), from consanguineus "consanguineous, of the same blood," from com- "together" (see com-) + sanguineus "of blood" (see sanguine).
conscience (n.)youdaoicibaDictYouDict
early 13c., from Old French conscience "conscience, innermost thoughts, desires, intentions; feelings" (12c.), from Latin conscientia "knowledge within oneself, sense of right, a moral sense," from conscientem (nominative consciens), present participle of conscire "be (mutually) aware," from com- "with," or "thoroughly" (see com-) + scire "to know" (see science).

Probably a loan-translation of Greek syneidesis, literally "with-knowledge." Sometimes nativized in Old English/Middle English as inwit. Russian also uses a loan-translation, so-vest, "conscience," literally "with-knowledge."
conscient (adj.)youdaoicibaDictYouDict
c. 1600, "conscious," from Latin conscientem, present participle of conscire "to be conscious" (see conscience). Also with meaning "a conscious being" (c. 1770).
conscientious (adj.)youdaoicibaDictYouDict
1610s, from Middle French conscientieux (16c.; Modern French consciencieux), from Medieval Latin conscientiosus, from conscientia (see conscience). Related: Conscientiously; conscientiousness.
conscientious objector (n.)youdaoicibaDictYouDict
1896, in reference to those with religious scruples about mandatory vaccination. Military sense predominated from World War I.
After a chequered career full of startling episodes and reversals, the Vaccination Bill becomes virtually the Vaccination Act. In Parliament the hottest of the contest centred round the conscientious objector. [The Lancet, Aug. 13, 1898]
conscionable (adj.)youdaoicibaDictYouDict
1540s, from conscioned "having a conscience" (from conscience) + -able; obsolete from early 18c. but fossilized in its negative, unconscionable.
conscious (adj.)youdaoicibaDictYouDict
c. 1600, "knowing, privy to," from Latin conscius "knowing, aware," from conscire (see conscience); probably a loan-translation of Greek syneidos. A word adopted from the Latin poets and much mocked at first. Sense of "active and awake" is from 1837.
consciousness (n.)youdaoicibaDictYouDict
1630s, "internal knowledge," from conscious + -ness. Meaning "state of being aware" is from 1746.
conscript (n.)youdaoicibaDictYouDict
1800, perhaps a back-formation (influenced by French adjective conscrit) from conscription.
conscript (v.)youdaoicibaDictYouDict
1813, American English, from conscript (n.). A word from the militia drafts in the War of 1812. Popularized (or unpopularized) during U.S. Civil War, when both sides resorted to it in 1862. Related: Conscripted; conscripting.
conscript (adj.)youdaoicibaDictYouDict
1530s, from Latin conscriptus, past participle of conscribere "to draw up, list," literally "to write together" (see conscription).
conscription (n.)youdaoicibaDictYouDict
late 14c., "a putting in writing," from Middle French conscription, from Latin conscriptionem (nominative conscriptio) "a drawing up of a list, enrollment, a levying of soldiers," from conscribere "to enroll," from com- "with" (see com-) + scribere "to write" (see script (n.)).

Meaning "enlistment of soldiers" is from 1520s; the sense "compulsory enlistment for military service" (1800) is traceable to the French Republic act of Sept. 5, 1798. Technically, a conscription is the enrollment of a fixed number by lot, with options of providing a substitute.
consecrate (v.)youdaoicibaDictYouDict
late 14c., from Latin consecratus, past participle of consecrare "to make holy, devote," from com- "together" (see com-) + sacrare (see sacred). Related: Consecrated; consecrating.
consecration (n.)youdaoicibaDictYouDict
late 14c., from Latin consecrationem (nominative consecratio), noun of action from consecrat-, past participle stem of consecrare (see consecrate).