Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Mĕlĕăger and Mĕlĕăgros (-ag-rus), gri, m., = Μελέαγρος, son of the Calydonian king Œneus and Althæa, one of the combatants at the Calydonian boar-hunt. His life depended on the preservation of an extinguished brand; this his mother burned, out of revenge for the death of her brothers who had fallen by his hand, and he expired, Ov. M. 8, 299 sq.; id. H. 9, 151; Val. Fl. 1, 435; Hyg. Fab. 171 sq.; Serv. Verg. A. 7, 306.
Hence,