morganatic

a. [ LL. matrimonium ad morganaticam, fr. morganatica a morning gift, a kind of dowry paid on the morning before or after the marriage, fr. OHG. morgan morning, in morgangeba morning gift, G. morgengabe. See Morn. ] Pertaining to, in the manner of, or designating, a kind of marriage, called also left-handed marriage, between a man of superior rank and a woman of inferior, in which it is stipulated that neither the latter nor her children shall enjoy the rank or inherit the possessions of her husband. Brande & C. -- Mor`ga*nat"ic*al*ly adv. [1913 Webster]