Source : Webster's Revised Unabridged Dictionary (1913)

Acrase \A*crase"\, Acraze \A*craze"\, v. t. [Pref. a- + crase;
   or cf. F. ['e]craser to crush. See {Crase}, {Craze}.]
   1. To craze. [Obs.] --Grafton.

   2. To impair; to destroy. [Obs.] --Hacket.