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.

Quĭrīna, ae, f., a Roman tribe: Quirina tribus a Curensibus Sabinis appellationem videtur traxisse, Fest. p. 254 Müll.; Cic. Quint. 6, 24; id. Fam. 8, 8, 5 and 6; Inscr. Grut. 56, 11 et saep.

2. Quĭrīnus, a, um, adj. [1. Quirinus, I.], of or belonging to Quirinus, i. e. Romulus, Quirinal (poet.): spolia ex umeris Quirinis (al. Quirini), Prop. 4 (5), 10, 11: collis, i. e. the Quirinal, Ov. M. 14, 836.
Hence, as subst.: Quĭrīna, q. v.
And hence, perh., subst., the poet. appellation Quirinus, given to Augustus and Antony, cited under 1. Quirinus.