The Collaborative International Dictionary of English v.0.48:

Adaunt \A*daunt"\, v. t. [OE. adaunten to overpower, OF.
   adonter; [`a] (L. ad) + donter, F. dompter. See Daunt.]
   To daunt; to subdue; to mitigate. [Obs.] --Skelton.
   [1913 Webster]