Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
lĕbes, ētis, m., = λέβης, among the Greeks, a copper basin, kettle, caldron, for cooking, frequently given as an honorary reward or prize: tertia dona facit geminos ex aere lebetas, Verg. A. 5, 266: Dodonaei, id. ib. 3, 466; Ov. H. 3, 31.