(n.) Any right, privilege, or possession to which a person is entitled by birth\, such as an estate descendible by law to an heir, or civil liberty under a free constitution; esp. the rights or inheritance of the first born.

appanage appurtenance authority bequeathal bequest borough-English claim coheirship conjugal right coparcenary demand divine right droit due entail faculty gavelkind heirloom heirship hereditament heritable heritage heritance inalienable right incorporeal hereditament inheritance interest law of succession legacy line of succession mode of succession natural right patrimony perquisite postremogeniture power prerogative prescription presumptive right pretense pretension primogeniture privilege proper claim property right reversion right succession title ultimogeniture vested interest vested right