D defs.my
Entry 1 sense Webster, 1913

Withsay

· With·say · IPA
01 v. t. To contradict; to gainsay; to deny; to renounce.
  1. 1.
    To contradict; to gainsay; to deny; to renounce.[Obs.]
    “If that he his Christendom withsay.” Chaucer.