verb (v)

• give up, such as power, as of monarchs and emperors, or duties and obligations(verb.social)

  Example:
  The King abdicated when he married a divorcee.
  

  Synonym:
  renounce
  

  source: wordnet30
• To surrender or relinquish, as sovereign power; to withdraw definitely from filling or exercising, as a high office, station, dignity; as, to abdicate the throne, the crown, the papacy.(verb)

  source: webster1913
• To relinquish or renounce a throne, or other high office or dignity.(verb)

  source: webster1913