12 letters · 14 points in Scrabble
noun rejecting or disowning or disclaiming as invalid
noun the state of having rejected your religious beliefs or your political party or a cause (often in favor of opposing beliefs or causes)
noun an act (spoken or written) declaring that something is surrendered or disowned
originFrom Latin renūntiātiō. Compare renounce.
Etymology from Wiktionary, CC BY-SA 3.0