morganatic marriage贵庶通婚;贵贱通婚;贵庶婚姻
ADJ(形容词) of or designating a marriage between a person of high rank and a person of low rank, by which the latter is not elevated to the higher rank and any issue have no rights to the succession of the higher party's titles, property, etc (并不使贫民地位提升的)贵贱通婚的