Source : Webster's Revised Unabridged Dictionary (1913)

Ante \An"te\, n. (Poker Playing)
   Each player's stake, which is put into the pool before (ante)
   the game begins.

Ante \An"te\, v. t. & i.
   To put up (an ante).

Source : WordNet®

ante
     n : (poker) the initial contribution that each player makes to
         the pot

ante
     v : place one's stake