Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Īlĭŏna, ae, and Īlĭŏnē, ēs, f., = Ἰλιόνη, the eldest daughter of Priam, the wife of Polymnestor, a king in Thrace, Verg. A. 1, 653 Serv.; Hyg. Fab. 109; 240; 243; Cic. Ac. 2, 27, 88.
The title of a tragedy by Pacuvius, Hor. S. 2, 3, 61; cf. Cic. Tusc. 1, 44, 106; and see the fragments, Trag. Rel. p. 100 sq. Rib.