To renounce upon oath; to forswear; to disavow; as, to abjure allegiance to a prince. To abjure the realm, is to swear to abandon it forever.
- To recant solemnly; renounce or repudiate: "For nearly 21 years after his resignation as Prime Minister in 1963, he abjured all titles, preferring to remain just plain 'Mr.'” ( Time).
- To renounce under oath; forswear.