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]