Writ for acquitting or releasing pledges. A writ that lay for a surety, against him for whom he had become surety for the payment of a certain sum of money at a certain day, where the latter had not paid the money at the appointed day, and the surety was compelled to pay it. Reg. Orig. 158; Fitzh. Nat. Brevi 137, C; 3 Reeve, Eng. Law, 65.