Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
fābŭlōsĭtas, ātis, f. [fabulosus], fabulous invention; Gr. μυθοποιΐα (post-Aug.), Plin. 7, 52, 53, § 174; 36, 13, 19, § 91; Diom. p. 474 P.