Noun
prenuptial agreement (plural prenuptial agreements)
A legal document, signed by both parties before marriage, stating the legal claims on each other's estate upon a subsequent divorce.
Prenups are so unromantic - a sign of distrust, not love. Time for a reality check, my friends. First, drawing up a prenuptial agreement together is a sign of incredible trust and financial openness - you're fooling yourself if you think you can achieve complete intimacy without it. Suze Orman