Source : Webster's Revised Unabridged Dictionary (1913)

Self-renunciation \Self`-re*nun`ci*a"tion\, n.
   The act of renouncing, or setting aside, one's own wishes,
   claims, etc.; self-sacrifice.

Source : WordNet®

self-renunciation
     n : renunciation of your own interests in favor of the interests
         of others [syn: {abnegation}, {self-abnegation}, {denial},
          {self-denial}]