1. The solemn repudiation, abandonment, or renunciation by or upon oath; often the renunciation of citizenship or some other right or privilege: "The abjuration of Vera's citizenship where she was born made it possible for her to become a citizen in a new country."
2. Denials, disavowals, or renunciations under oath; "In common ecclesiastical language abjuration is restricted to the renunciation of heresy made by the penitent heretic on the occasion of his reconciliation with the Catholic Church."

"The many adjurations of the alleged witch convinced the clergy that she was sincere and penitent."