Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† lembus, i, m., = λέμβος, a small fastsailing vessel with a sharp prow, a pinnace, yacht, cutter: lembus genus navicellae velocissimae, quod et dromonis nomine appellamus, Fulg. Exp. Serm. 564, 6; Att. ap. Non. 534, 5: celerare lembum, Turp. ib. 7: lembo advehitur pauxillulo, Plaut. Merc. 1, 2, 81: ascendi in lembum, id. ib. 2, 1, 35: ducit lembum jam dierectum navis praeditoria, id. Men. 2, 3, 87: classis lemborum, Liv. 45, 10; 34, 35: qui adverso vix flumine lembum Remigiis subigit, Verg. G. 1, 201: piratici lembi, Curt. 4, 5, 18.