abjure /əbˈdʒʊə 
, əbˈdʒɔː / ▸ verb [with object] formal solemnly renounce (a belief, cause, or claim): MPs were urged to abjure their Jacobite allegiance.
– PHRASES abjure the realm historical
swear an oath to leave a country forever: prior to transportation, offenders were sometimes permitted to abjure the realm.
– DERIVATIVES abjuration /ˌabdʒʊˈreɪʃn / noun – ORIGIN late Middle English: from Latin abjurare, from ab- ‘away’ + jurare ‘swear’.
EnglishOxford Dictionary of English
