Obs. rare1. [Fr.; now written forçat.] In phrase To play at forsat (= F. jouer au forçat): to adhere strictly to certain rules the observance of which is not generally obligatory.
1674. Cotton, Complete Gamester, in Singer, Hist. Cards, 340. If you play at forsat (that is the rigour of the play) he that deals wrong loseth one and his deal.