Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

Navĭus, ii, m., a Roman proper name. Especially celebrated is Attus Navius, an augur under Tarquinius Priscus, who cut a stone in two with a razor, Liv. 1, 36; Cic. N. D. 2, 3, 9; id. Div. 1, 17, 31 sq.; Plin. 15, 18, 20, § 77.
Hence, Navĭus, a, um, adj., Navian: Navia ficus, a fig-tree in the Comitium at Rome, on the spot where Navius cut the stone in two with a razor. As long as it flourished Roman liberty was to endure, Plin. 15, 18, 20, § 77; Paul. ex Fest. p. 169 Müll.