The Collaborative International Dictionary of English v.0.48:

Roquet \Ro*quet"\, v. i.
   To hit another's ball with one's own.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Roquet \Ro*quet"\, v. t. [Etymol. uncertain] (Croquet)
   To hit, as another's ball, with one's own ball.
   [1913 Webster]