Mamzer

Lit. Bastard
According to Jewish law, a mamzer is child born of a mother who is married yet conceives by someone else. A child born out of wedlock is not a mamzer. The issue of a mamzer is a complicating factor in the question of Orthodox divorce. If a woman who is refused a get – a writ of divorce by her husband – or who never receives a get – remarries and gives birth to children, those children are considered mamzerim (plural).