Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
blătĭo, īre, v. a. [kindred with blatero], to utter foolish things, to babble, prate (anteclass. and late Lat.): nugas blatis, Plaut. Am. 2, 1, 79; so id. Curc. 3, 82; id. Ep. 3, 1, 13; Tert. Pall. 2; cf. Non. p. 44, 11 sq.