Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
1. cincinnātus, adj. [cincinnus],
2. Cincinnātus, i, m., a cognomen of the renownea L. Qumctius, taken from the plough to the dictatorship, Liv. 3, 26, 6; 4, 13, 14 sq.; Cic. Fin. 2, 4, 12; id. Sen. 16, 56; Col. 1, praef. § 13; Plin. 18, 3, 4, § 20; Val. Max. 4, 4 al.