Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Leucāta, ae, and Leucātē, ēs, f. (Leucāte, is, n., Serv. Verg. A. 3, 279.
Leucātes, ae, m., Claud. B. G. 185.
Leucas, ădis, f., Ov. H. 15, 172; Sen. Herc. Oet. 732), a promontory in the island of Leucadia, now Capo Ducato, Cic. Tusc. 4, 18, 41; Liv. 26, 26; 44, 1: Leucatae nimbosa cacumina montis, Verg. A. 3, 274; Liv. 36, 15; Plin. 4, 1, 2, § 5.