Lewis & Short

acceptĭlātĭo, ōnis, also written separately, accepti latio, f. [acceptum fero], a formal discharging from a debt (by the verbal declaration of the debtor: acceptum fero), Gai. 3, 169; id. 170; Dig. 4, 2, 9, § 2; 34, 3, 3, § 3; id. Lex. 5, § 3 al.; cf. Rein’s Privatrecht, p. 359.