before 900; (v.) Middle Englishlōk(i)en,Old Englishlōcian; cognate with Middle Dutchlœken, akin to dialectal Germanlugen to look out; (noun) Middle Englishloke act of looking, glance, countenance, derivative of the v.
1. See watch. 6. See seem. 16. gaze, glance. 17. appearance, air.
O.E. locian "see, gaze, look, spy," from W.Gmc. *lokjan (cf. O.S. lokon, M.Du. loeken, O.H.G. luogen, Ger. dial. lugen "to look out"), of unknown origin, perhaps cognate with Bret. lagud "eye." In O.E., usually with on; the use of at began 14c. Meaning "to have a certain appearance" is from c.1400. Noun meaning "an act of looking" is c.1200; meaning "appearance of a person" is from late 14c. 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. In look sharp (1711) sharp originally was an adv. "sharply." Look after "take care of" is from late 14c.; look into "investigate" is from 1580s; to not look back "make no pauses" is colloquial, first attested 1893. Look up "research in books or papers" is from 1690s.