Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
lĕa, ae, f. [leo], a lioness (poet. for leaena): panthera et lea, Varr. ap. Philarg. ad Verg. E. 2, 63; * Lucr. 5, 1318: pectus et ora leae, Ov. M. 9, 648: hirsutae, id. F. 5, 176; id. M. 14, 255: saeva, id. ib. 4, 102.