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.

Argŏnautae, ārum, m., = Ἀργοναῦται (the sailors of the Argo), the Argonauts, Val. Fl. 1, 353; Hyg. Fab. 14; Plin. 36, 15, 23, § 99: vehiculum Argonautarum, Cic. N. D. 2, 35, 89: navis, id. de Or. 1, 38, 174: princeps, i. e. Jason, id. Tusc. 4, 32, 69 al.
Martial, in his Epigr. 3, 67, De pigris nautis, plays upon the word, deriving it from ἀργός, lazy, instead of Ἀργώ, making Argonautae = pigri nautae.
Hence, Argŏ-nautĭcus, a, um, adj., relating to the Argonauts, Argonautic.
Argŏnautĭca, ōrum, n., the title of a poem by Valerius Flaccus, which has for its subject the Argonautic expedition; cf. Bähr, Lit. Gesch. p. 100; Teuffel, Rom. Lit. § 312.