Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
crĕpĭdātus, a, um, adj. [crepida], wearing sandals, Cic. Pis. 38, 92 and 93; Suet. Dom. 4: fabula, a kind of Græco-Roman tragedy, Don. Ter. Ad. prol. 7; cf. Neukirch. Fab. Tog. pp. 15 and 57.