See renounce in Webster's New World Roget's A-Z Thesaurus II
To give up a possession, claim, or right:
abandon, abdicate, cede, demit, forswear, hand over, quitclaim, relinquish, render, resign, surrender, waive, yield. See keepTo refuse to recognize or acknowledge:
deny, disacknowledge, disavow, disclaim, disown, reject, repudiate. Idiom: turn one's back on. See acceptLearn more about renounce