formally reject or disavow a formerly held belief, usually under pressure; "He retracted his earlier statements about his religion"; "She abjured her beliefs"
{f} swear to give up, renounce; deny under oath, strongly deny; commit perjury, deny falsely under oath
If you forswear something, you promise that you will stop doing it, having it, or using it. The party was offered a share of government if it forswore violence. = renounce. to stop doing something or promise that you will stop doing something = renounce