abjures
v. C1 Advanced ab·jures
v. to officially give up a belief, a habit, or a right. You use this when someone makes a formal promise to stop doing something.
v. to formally renounce a belief, practice, or right; to make a solemn declaration of abandonment. Often used in legal or religious contexts.
He abjures his old beliefs and joins the new group.
The former president abjures any involvement in the upcoming election to maintain his neutrality.
By signing the document, the suspect abjures all claims to the property, effectively relinquishing any legal right to challenge the new owner's title.