Source : Webster's Revised Unabridged Dictionary (1913)

Nill \Nill\, v. t. [imp. & p. p. {Nilled}; p. pr. & vb. n.
   {Nilling}.] [AS. nilan, nyllan; ne not + willan to will. See
   {No}, and {Will}.]
   Not to will; to refuse; to reject. [Obs.]

         Certes, said he, I nill thine offered grace. --Spenser.