Incredulitas, pe. cor. increduli tatis, f. g. Mart. Incredulitie: lacke of beliefe.Incrementum Vide INCRESCO.
Lewis and Short: Latin dictionary
incrēdŭlĭtas, ātis, f. [incredulus], disbelief, incredulity (post-class.). I. In gen., App. M. 1, p. 111, 18.— II. Esp., religious disbelief, incredulity, Cod. Th. 16, 8, 19; Paul. Nol. Carm. 6, 95: venit ira Dei super filios incredulitatis, Vulg. Col. 3, 6 al.