ejuration
Renouncement, rejection; resignation of one's position.
obsolete, rare, uncountable
Paul witnesseth of himself, before his conversion, to blaspheme, by their ejuration of the known truth, and their subscriptions to the Popish trumperies.
Where it comes from
Borrowed from Latin ēiūrātiō, from ēiūrō (“to abjure, disown, resign”) + -tiō.
Adapted from the Wiktionary entry ejuration (CC BY-SA 4.0).