renounce (v.)
late 14c., from Old French renoncier "give up, cede" (12c., Modern French renoncer), from Latin renuntiare "bring back word; proclaim; protest against, renounce," from re- "against" (see re-) + nuntiare "to report, announce," from nuntius "messenger" (see nuncio). Related: Renounced; renouncing.