c.1200, "to watch with hostile intent, lie in wait for," from O.N.Fr.
waitier "to watch" (Fr.
guetter), from Frank.
*wahton (cf. Du.
wacht "a watching," O.H.G.
wahten, Ger.
wachten "to watch, to guard;" O.H.G.
wahhon "to watch, be awake," O.E.
wacian "to be awake;" see
wake (v.)). General sense of "remain in some place" is from 1375; meaning "serve as an attendant at a table" is from 1568. The noun is first attested c.1300. To
wait (something) out "endure a period of waiting" is recorded from 1909, originally Amer.Eng., in ref. to baseball batters trying to draw a base on balls.
Waiting game is recorded from 1890.
Waiting room is attested from 1683.
Waiting list is recorded from 1897; the verb
wait-list "to put (someone) on a waiting list" is recorded from 1960.