betted
Webster's Dictionary (GCIDE)
Bet \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. [1913 Webster]
John a Gaunt loved him well, and betted much money on his head. --Shak. [1913 Webster]
I'll bet you two to one I'll make him do it. --O. W. Holmes. [1913 Webster]