The Collaborative International Dictionary of English v.0.48:

Counterbuff \Coun`ter*buff"\ (koun`t?r-b?f"), v. t.
   To strike or drive back or in an opposite direction; to stop
   by a blow or impulse in front. --Dryden.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Counterbuff \Coun"ter*buff`\ (koun"t?r-b?f`), n.
   A blow in an opposite direction; a stroke that stops motion
   or cause a recoil.
   [1913 Webster]