The Collaborative International Dictionary of English v.0.48:

Amate \A*mate"\, v. t. [OF. amater, amatir.]
   To dismay; to dishearten; to daunt. [Obs. or Archaic]
   [1913 Webster]

         The Silures, to amate the new general, rumored the
         overthrow greater than was true.         --Milton.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Amate \A*mate"\, v. t. [Pref. a- + mate.]
   To be a mate to; to match. [Obs.] --Spenser.
   [1913 Webster]