The Collaborative International Dictionary of English v.0.48:

Appeach \Ap*peach"\, v. t. [OE. apechen, for empechen, OF.
   empeechier, F. emp[^e]cher, to hinder. See Impeach.]
   To impeach; to accuse; to asperse; to inform against; to
   reproach. [Obs.]
   [1913 Webster]

         And oft of error did himself appeach.    --Spenser.
   [1913 Webster]