abjuration

He escaped the massacre of St Bartholomew on the 24th of August by a feigned abjuration.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 3 "Helmont, Jean" to "Hernosand" by Various

Oath of abjuration, 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.

From Webster's Unabridged Dictionary by Noah Webster

This was not a strictly formal abjuration such as was customarily required of prisoners of the Inquisition, yet it might have sufficed.

From A History of The Inquisition of The Middle Ages; volume II by Henry Charles Lea

The vow of perpetual seclusion comprises a renunciation of the pleasures and business of life, an abnegation of the claims of consanguinity, friendship and society; and an abjuration of all filial, parental and natural affection.

From Monks, Popes, and their Political Intrigues by John Alberger

The vow of poverty embraced an unqualified abjuration of all right to acquire or hold individual property, but granted the privilege of owning property in a corporate capacity.

From Monks, Popes, and their Political Intrigues by John Alberger