A pledge is a bailment that conveys title to property owned by a debtor (the pledgor) to a creditor (the pledgee) to secure repayment for some debt or obligation and to the mutual benefit of both parties.[1][2] The term is also used to denote the property which constitutes the security.[3] The pledge is a type of security interest.[4][5] Pledge is the pignus of Roman law, from which most of the modern European-based law on the subject is derived, but is generally a feature of even the most basic legal systems.[3] A pledge of personal property is known as a pawn.