abrenunciation

from The Collaborative International Dictionary of English v.0.48

Abrenunciation \Ab`re*nun`ci*a"tion\, n. [LL. abrenuntiatio. See
   {Abrenounce}.]
   Absolute renunciation or repudiation. [Obs.]
   [1913 Webster]

         An abrenunciation of that truth which he so long had
         professed, and still believed.           --Fuller.
   [1913 Webster]