Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
fābŭlāris, e, adj. [1. fabula, II.], fabulous = fabulosus: historia fabularis, fabulous history, legendary tale, Suet. Tib. 70; Censor. de Die Nat. 4.
fābŭlor, ātus (archaic inf. praes. fabularier, Plaut. Am. 1, 1, 46; id. Most. 3, 1, 77; id. Ps. 1, 1, 60; id. Trin. 2, 4, 60; Ter. Hec. 3, 1, 36; also act. form fabulaverit, Afran. ap. Non. 232, 26 dub.: fabulabere, Rib. v. 147: fabulem, Plaut. Mil. 2, 5, 33 Fleck.), 1, v. dep. a. [fabula], to speak, converse, talk, chat (mostly ante- and post-class.; esp. freq. in Plaut.; not in Cic.; syn.: aio, inquam, dico, loquor, etc.).