英语词源字典 - 在线词源网站

conscient (adj.)[conscient 词源字典]: c. 1600, "conscious," from Latin conscientem, present participle of conscire "to be conscious" (see conscience). Also with meaning "a conscious being" (c. 1770).[conscient etymology, conscient origin, 英语词源]
conscientious (adj.): 1610s, from Middle French conscientieux (16c.; Modern French consciencieux), from Medieval Latin conscientiosus, from conscientia (see conscience). Related: Conscientiously; conscientiousness.
conscientious objector (n.): 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]
nescient (adj.): 1620s, from Latin nescientem (nominative nesciens) "ignorant, unaware," present participle of nescire "not to know, to be ignorant," from ne "not" + scire "to know" (see science).
omniscient (adj.): c. 1600, from Modern Latin omniscientem (nominative omnisciens), back-formation from Medieval Latin omniscientia (see omniscience). Related: Omnisciently.
prescient (adj.): 1620s, from Middle French prescient (15c.) and directly from Latin praescientem (nominative praesciens), present participle of praescire (see prescience).
pseudo-scientific (adj.): also pseudoscientific, 1816; see pseudo- + scientific; also compare pseudo-science.
scienter (adv.): legalese Latin, literally "knowingly," from sciens, present participle of scire "to know" (see science) + adverbial suffix -ter.
scientific (adj.): 1580s, from Middle French scientifique, from Medieval Latin scientificus "pertaining to science," from Latin scientia "knowledge" (see science) + -ficus "making" + facere "to make" (see factitious). Originally used to translate Greek epistemonikos "making knowledge" in Aristotle's "Ethics."

Sciential (mid-15c., "based on knowledge," from Latin scientialis) is the classical purists' choice for an adjective based on science. Scientic (1540s) and scient (late 15c.) also have been used. First record of scientific revolution is from 1803; scientific method is from 1854; scientific notation is from 1961. Related: Scientifical; scientifically.
scientist (n.): 1834, a hybrid coined from Latin scientia (see science) by the Rev. William Whewell (1794-1866), English polymath, by analogy with artist, in the same paragraph in which he coined physicist (q.v.).
Scientology (n.): 1951, system of beliefs founded by L. Ron Hubbard. According to www.scientology.org:
The word Scientology, conceived by L. Ron Hubbard, comes from the Latin scio which means "knowing, in the fullest meaning of the word" and the Greek word logos which means "study of." It means knowing how to know. Scientology is further defined as "the study and handling of the spirit in relationship to itself, universes and other life."
There was a German scientologie (A. Nordenholz, 1937).
sciential: "Concerning or having knowledge", Late Middle English: from late Latin scientialis, from scientia 'knowledge' (see science).