withsay

from The Collaborative International Dictionary of English v.0.48

Withsay \With*say"\, v. t.
   To contradict; to gainsay; to deny; to renounce. [Obs.]
   --Gower.
   [1913 Webster]

         If that he his Christendom withsay.      --Chaucer.
   [1913 Webster]