Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
* ac-cūdo, ĕre, 3, v. a., lit. to strike or stamp upon, to coin (of gold; cf. cudo); hence, metaph., to coin further, to add to a sum of money: tris minas accudere etiam possum, et triginta sient, Plaut. Merc. 2, 3, 96.