Webster’s Revised Unabridged Dictionary · 1913
Cue
Cue (kū), n. [ OF. coue, coe, F. queue, fr. L. coda, cauda, tail. Cf. Caudal, Coward, Queue.] 1. The tail; the end of a thing; especially, a tail-like twist of hair worn at the back of the head; a queue.
2. The last words of a play actor's speech, serving as an intimation for the next succeeding player to speak; any word or words which serve to remind a player to speak or to do something; a catchword.
When my cue comes, call me, and I will answer. Shak.
3. A hint or intimation.
Give them [the servants] their cue to attend in two lines as he leaves the house. Swift.
4. The part one has to perform in, or as in, a play.
Were it my cueto fight, I should have known it Without a prompter. Shak.
5. Humor; temper of mind. [Colloq.] Dickens.
6. A straight tapering rod used to impel the balls in playing billiards.
Cue, v. t. To form into a cue; to braid; to twist.
Cue, n. [From q, an abbreviation for quadrans a farthing.] A small portion of bread or beer; the quantity bought with a farthing or half farthing. [Obs.]
☞ The term was formerly current in the English universities, the letter q being the mark in the buttery books to denote such a portion. Nares.
Hast thou worn Gowns in the university, tossed logic, Sucked philosophy, eat cues? Old Play.