Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
* suāvĭlŏquentĭa, ae, f. [suaviloquens], sweetness of speech, suaviloquence: et oratorem appellat (Ennius Cethegum) et suaviloquentiam tribuit, Cic. Brut. 15, 58; cf. suaviloquens.