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ignite [ignite 词源字典]: ignite: [17] The Latin word for ‘fire’ was ignis (it has been traced back to a prehistoric Indo- European *egni- or *ogni-, which also produced Sanskrit agni- and Lithuanian ugnìs ‘fire’). From it were derived the verb ignīre ‘set light to’, source of English ignite, and the adjective igneus, from which English got igneous [17]. Another contribution the Latin noun has made to English is ignis fatuus ‘will-o’-the-wisp’ [16], literally ‘foolish fire’, so called perhaps from its erratic flickering, as if scatter-brained.
[ignite etymology, ignite origin, 英语词源]
Argo: name of the ship in which Jason and his companions sought the Fleece in Colchis, in Greek, literally "The Swift," from argos "swift" (adj.), an epithet, literally "shining, bright" (see argent; compare also Sanskrit cognate rjrah "shining, glowing, bright," also "swift"), "because all swift motion causes a kind of glancing or flickering light" [Liddell & Scott].
flick (n.): mid-15c., "light blow or stroke," probably imitative of a light blow with a whip. Earliest recorded use is in phrase not worth a flykke "useless." Meaning "quick turn of the wrist" is from 1897 in sports. As slang for "film," it is first attested 1926, a back-formation from flicker (v.), from their flickering appearance.
flicker (n.1): 1849, "wavering, unsteady light or flame;" 1857 as "a flickering," from flicker (v.).
flicker (v.): Old English flicorian "to flutter, flap quickly and lightly, move the wings," originally of birds. Onomatopoeic and suggestive of quick motion. Sense of "shine with a wavering light" is c. 1600, but not common till 19c. Related: Flickered; flickering.