Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Andrŏnīcus, i, m., the cognomen of several Romans, among whom the most distinguished, L. Livius Andronicus, the first dramatic and epic poet of the Romans, lived in the middle of the third century B.C., Cic. Brut. 18; Gell. 17, 21 al.; cf. Bähr, Lit. Gesch. p. 41 sq.; 78; Teuffel, Rom. Lit. § 82.