From Longman Dictionary of Contemporary Englishabjureab‧jure /əbˈdʒʊə, æb- $ -ˈdʒʊr/ verb [transitive] STOP DOING something formal to state publicly that you will give up a particular belief or way of behaving SYN renounce→ See Verb table
Examples from the Corpus
abjure• She can not abjure, give up, control the force by which she is possessed.• Myln was a former priest, who had abjured in the early 1540s.• I would abjure my art then and there, leave off cursing, leave off binding fast and loose with spells.• The top echelons of the civil service have generally abjured responsibility for policy decisions.• But he had a mild, good-humoured, articulate side, verging on the academic, abjuring the sensational.Origin abjure (1400-1500) Latin abjurare, from ab- “away” + jurare “to swear” 