palimony

noun

1. a form of alimony awarded to one of the partners in a romantic relationship after the breakup of that relationship following a long period of living together.

noun

1. US alimony awarded to a nonmarried partner after the break-up of a long-term relationship

n.1979, coined from pal (n.) + alimony. Popularized, if not introduced, during lawsuit against U.S. film star Lee Marvin (1924-1987).