Etymology
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eye-catching (adj.)

1799, from eye (n.) + present participle of catch (v.). Eye-catcher (n.) is from 1882, first in advertising; eye-trap (n.) is attested from 1785.

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catching (adj.)

1580s, of diseases, "communicating, infectious," present-participle adjective from catch (v.). From 1650s as "captivating." Related: Catchingly.

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eye (n.)

c. 1200, from Old English ege (Mercian), eage (West Saxon) "eye; region around the eye; apperture, hole," from Proto-Germanic *augon (source also of Old Saxon aga, Old Frisian age, Old Norse auga, Swedish öga, Danish øie, Middle Dutch oghe, Dutch oog, Old High German ouga, German Auge, Gothic augo "eye"). Apparently the Germanic form evolved irregularly from PIE root *okw- "to see."

HAMLET: My father — methinks I see my father.
HORATIO: Where, my lord?
HAMLET: In my mind's eye, Horatio.

Until late 14c. the English plural was in -an, hence modern dialectal plural een, ene. Of potatoes from 1670s. Of peacock feathers from late 14c. As a loop used with a hook in fastening (clothes, etc.) from 1590s. The eye of a needle was in Old English. As "the center of revolution" of anything from 1760. Nautical in the wind's eye "in the direction of the wind" is from 1560s.

To see eye to eye is from Isaiah lii.8. Eye contact attested from 1953. To have (or keep) an eye on "keep under supervision" is attested from early 15c. To have eyes for "be interested in or attracted to" is from 1736; make eyes at in the romance sense is from 1837; gleam in (someone's) eye (n.) "barely formed idea" is from 1959. Eye-biter was an old name for "a sort of witch who bewitches with the eyes."

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eye (v.)

early 15c., "cause to see;" 1560s, "behold, observe," from eye (n.). Related: Eyed; eyeing.

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eye-candy (n.)

also eye candy, "attractive woman on a TV show, etc.," by 1978, based on a metaphor also found in nose candy "cocaine" (1930).

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eye-tooth (n.)

also eyetooth, "upper canine tooth," 1570s, so called for its position immediately under or next to the eye. Compare German Augenzahn. Related: Eye-teeth.

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pink-eye (n.)

contagious eye infection, 1882, American English, from pink (adj.) + eye (n.). Earlier it meant "a small eye" (1570s).

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eye-drop (n.)

also eyedrop, 1590s, "tear," from eye (n.) + drop (n.). From 1938 as "a drop for the eye." Related: Eye-dropper.

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bulls-eye (n.)

also bullseye, 1833 as "center of a target," from bull (n.1) + eye (n.). So called for size and color. Meaning "shot that hits the mark" is from 1857. Bulls-eye also was used from 1680s of various sorts of circular holes or objects.

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eye-witness (n.)

also eyewitness, "one who testifies to something he has seen," 1530s, from eye (n.) + witness (n.). As a verb from 1844. Related: Eyewitnessed; eyewitnessing.

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