pick (v.) Look up pick at Dictionary.com
O.E. *pician "to prick," merged with O.N. pikka "to prick, peck," common Gmc. (cf. M.Du. picken, Ger. picken "to pick, peck"), from PIE *pik-/*pek-, an imitative base. The meaning "to choose, select, pick out" emerged late 14c., from earlier meaning "to pluck with the fingers" (early 14c.). To pick a quarrel, etc. is from mid-15c.; to pick at "find fault with" is from c.1670. Pick on "single out for adverse attention" is from late 14c.; to pick (someone) up "make someone's acquaintance aggressively for sexual purposes" is first recorded 1690s. Pick off "shoot one by one" is recorded from 1810; baseball sense of "to put out a runner on base" is from 1939. Pickpocket is from 1591 (earlier pick-purse, late 14c.). Pick-me-up "stimulating alcoholic drink" is attested from 1867. Picky first recorded 1867.
pick (n.) Look up pick at Dictionary.com
c.1300, pyk "pikestaff," variant of pike (2). Pic "pickaxe" is attested from mid-14c. Sense of "plectrum for a guitar, lute, etc." is from 1895; as a type of basketball block it is attested from 1951. Meaning "choicest part or example" is first recorded 1760, from pick (v.).