Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
multĭ-gĕnĕris, e, adj. [multus-genus], of many kinds (Plautin.): multis et multigeneribus opus est tibi Militibus, Plaut. Capt. 1, 2, 56.
Absol.: unguenta multigenerum multa, for multorum generum, id. Stich. 2, 2, 59.