verb (v)

• formally reject or disavow a formerly held belief, usually under pressure(verb.communication)

  Example:
  She abjured her beliefs.
  

  Synonym:
  forswear, recant, resile, retract
  

  source: wordnet30
• 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.(verb)

  source: webster1913
• To renounce on oath.(verb)

  source: webster1913