verb. (American).To please.
1612. SYLVESTER, The Tragedie of Henry the Great, 642 [trans. of P. Mathieu]. One short Mis-hap for ever HAPPIFIES.
1848. W. E. BURTON, Waggeries and Vagaries, p. 70. For eatin and drinkin, it HAPPIFIES me to say that we bang the bush.