英语词源字典 - 在线词源网站

pupil [pupil 词源字典]: pupil: [14] Latin pūpus and pūpa meant respectively ‘boy’ and ‘girl’ (pūpa was applied by the Swedish naturalist Linnaeus to ‘chrysalises’, the underlying link being ‘undeveloped creature’, and English adopted it as pupa [19]). The diminutive derivatives pūpillus and pūpilla denoted ‘orphan’, a sense which remained with pūpill- as it passed via Old French pupille into English as pupil. ‘Person being taught’ did not emerge until the 16th century.

The application of the word to the ‘black aperture in the eye’, which reached English in the mid-16th century, goes back to Latin pūpilla, which was also used for ‘doll’ – the notion being that if you stand close to someone and look into their eyes, you can see yourself reflected in the pupils like a little ‘doll’.
=> pupa, puppet, puppy[pupil etymology, pupil origin, 英语词源]
inspect (v.): 1620s, from Latin inspectus, past participle of inspicere "to look into" (see inspection). Related: Inspected; inspecting.
inspection (n.): late 14c., from Old French inspeccion "inspection, examination" (13c.), from Latin inspectionem (nominative inspectio) "a looking into," noun of action from past participle stem of inspicere "look into, inspect, examine," from in- "into" (see in- (2)) + specere "to look" (see scope (n.1)).
introspect (v.): 1680s, from Latin introspectus, past participle of introspicere "look at, look into" (see introspection). Related: Introspected; introspecting.
introspection (n.): 1670s, noun of action from past participle stem of Latin introspicere "to look into, look at," from intro- "inward" (see intro-) + specere "to look at" (see scope (n.1)).
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."