morganatic
Pronunciation: /ˌmɔːgəˈnatɪk/
Definition of morganatic
adjective
Origin:
early 18th century: from modern Latin morganaticus, from medieval Latin matrimonium ad morganaticam 'marriage with a morning gift' (because a morning gift, given by a husband to his wife on the morning after the marriage, was the wife's sole entitlement in a marriage of this kind)