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suspect [suspect 词源字典]: suspect: [14] Latin suspicere originally meant literally ‘look up at’ (it was a compound verb formed from the prefix sub- ‘up from under’ and specere ‘look at’, source of English spectator, spy, etc). It evolved metaphorically along two lines: ‘look up to, admire’, which has since died out, and ‘look at secretly’, hence ‘look at distrustfully’, which has passed into English in the form of its past participial stem suspect-. Suspicion [14] comes from the medieval Latin derivative suspectiō.
=> expect, inspect, spectator, spy, suspicion[suspect etymology, suspect origin, 英语词源]
countenance (v.): late 15c., "to behave or act," from countenance (n.). Sense of "to favor, patronize" is from 1560s, from notion of "to look upon with sanction or smiles." Related: Countenanced; countenancing.
heads-up (adj.): "clever, alert," 1926, from warning cry "heads up!" (i.e. "look up!"). As a noun, "a notification, a warning," by 1988.
honor (v.): mid-13c., honuren, "to do honor to," from Old French honorer, from Latin honorare, from honor (see honor (n.)). In the commercial sense of "accept a bill due, etc.," it is recorded from 1706. Related: Honored; honoring.
A custom more honoured in the breach than the observance. Whoever will look up the passage (Hamlet I. iv. 16) will see that it means, beyond a doubt, a custom that one deserves more honour for breaking than for keeping: but it is often quoted in the wrong & very different sense of a dead letter or rule more often broken than kept. [Fowler]
look (v.): Old English locian "use the eyes for seeing, gaze, look, behold, spy," from West Germanic *lokjan (cognates: Old Saxon lokon "see, look, spy," Middle Dutch loeken "to look," Old High German luogen, German dialectal lugen "to look out"), of unknown origin, perhaps cognate with Breton lagud "eye." In Old English, usually with on; the use of at began 14c. Meaning "seek, search out" is c. 1300; meaning "to have a certain appearance" is from c. 1400. Of objects, "to face in a certain direction," late 14c.

Look after "take care of" is from late 14c., earlier "to seek" (c. 1300), "to look toward" (c. 1200). Look into "investigate" is from 1580s; look up "research in books or papers" is from 1690s. To look down upon in the figurative sense is from 1711; to look down one's nose is from 1921. To look forward "anticipate" is c. 1600; meaning "anticipate with pleasure" is mid-19c. To not look back "make no pauses" is colloquial, first attested 1893. In look sharp (1711) sharp originally was an adverb, "sharply."
regard (v.): mid-14c., "consider" (that something is so), from Middle French regarder "to look at," from regard (see regard (n.)). Meaning "look upon, observe" is from 1520s, as is that of "observe a certain respect toward." Related: Regarded; regarding.
survey (v.): c. 1400, "to consider, contemplate," from Anglo-French surveier, Old French sorveoir "look (down) at, look upon, notice; guard, watch," from Medieval Latin supervidere "oversee" (see supervise). Meaning "examine the condition of" is from mid-15c. That of "to take linear measurements of a tract of ground" is recorded from 1540s. Related: Surveyed; surveying; surveyance (late 14c.).
suspect (adj.): early 14c., "suspected of wrongdoing, under suspicion;" mid-14c., "regarded with mistrust, liable to arouse suspicion," from Old French suspect (14c.), from Latin suspectus "suspected, regarded with suspicion or mistrust," past participle of suspicere "look up at, look upward," figuratively "look up to, admire, respect;" also "look at secretly, look askance at," hence, figuratively, "mistrust, regard with suspicion," from assimilated form of sub "up to" (see sub-) + specere "to look at" (see scope (n.1)). The notion behind the word is "look at secretly," hence, "look at distrustfully."
suspicion (n.): c. 1300, "act of suspecting; unverified conjecture of wrongdoing; mistrust, distrust," from Anglo-French suspecioun, corresponding to Old French suspicion, sospeçon "mistrust, suspicion" (Modern French soupçon), from Late Latin suspectionem (nominative suspectio) "mistrust, suspicion, fear, awe," noun of state from past participle stem of Latin suspicere "look up at" (see suspect (adj.)). Spelling in English influenced 14c. by learned Old French forms closer to Latin suspicionem. Used as a verb meaning "to suspect," it figures in literary representations of U.S. Western (Kentucky) slang from 1830s.

"Suspicion" words in other Indo-European languages also tend to be words for "think" or "look" with prefixes meaning "under, behind;" such as Greek hypopsia (hypo "under," opsis "sight"), hyponoia (noein "to think"); Lettish aizduomas (aiz "behind," duomat "think"); Russian podozrenie (Slavic podu "under," Old Church Slavonic zireti "see, look"); Dutch achterdocht (achter "behind," denken "to think").