Abjuration

noun

1. The act of abjuring; a renunciation upon oath, or with great solemnity or strong asseveration: as, to take an oath of abjuration; an abjuration of heresy.
2. The act of abjuring or forswearing; a renunciation upon oath.

   "abjuration of the realm, a sworn banishment, an oath taken to leave the country and never to return"

3. A solemn recantation or renunciation.

   "an abjuration of heresy"

4. an oath asserting the right of the present royal family to the crown of England, and expressly abjuring allegiance to the descendants of the Pretender.
5. The act of abjuring.