Bet, v. t. [imp. & p. p.Bet, Betted (�); p. pr. & vb. n.Betting.] To stake or pledge upon the event of a contingent issue; to wager.
John a Gaunt loved him well, and betted much money on his head.
Shak.
I'll bet you two to one I'll make him do it.
O. W. Holmes.