gainsay (v.) 1
contradict, say the contrary, forbid
2H4 I.i.91 [Morton to Northumberland] You are too great to be by me gainsaid
3H6 V.iv.74 [Queen to her followers] what I should say / My tears gainsay
TC IV.v.132 [Hector to Ajax] the just gods gainsay / That any drop [of blood] ... should by my mortal sword / Be drained!