Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Lāvīnĭa, ae, f., the daughter of Latinus and wife of Æneas, Liv. 1, 1 sq.; Varr. L. L. 5, § 144 Müll.; Verg. A. 6, 764; Ov. M. 14, 449; 570.