Source : Webster's Revised Unabridged Dictionary (1913)

Renouncement \Re*nounce"ment\ (-ment), n. [Cf. F. renoncement.]
   The act of disclaiming or rejecting; renunciation. --Shak.

Source : WordNet®

renouncement
     n : an act (spoken or written) declaring that something is
         surrendered or disowned [syn: {renunciation}]