Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
luscĭnĭa, ae, f. (luscĭnĭus, ĭi, m., Phaedr. 3, 18, 2 and 11; Sen. Ep. 76, 7; and, † luscĭnus, i, m., = ἀηδών, Gloss. Lat. Gr.) [for clus-cinia; Sanscr. root cru, to hear; Gr. κλύω; Lat. clueo, to be famous, akin to gloria and cano; hence, the melodious or glorious songstress], the nightingale, Plin. 10, 29, 43, § 81 sq.: luscinias soliti impenso prandere coëmptas, Hor. S. 2, 3, 245: vox luscinii, Sen. Ep. 76, 9.