Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
corbis, is (abl. regularly corbe: corbi, Cato, R. R. 136 twice), comm. [corbes dicti quod curvatis virgis contexuntur, Isid. l. l.; but more prob. kindr. with κόλπος], a basket (esp. for use in gathering fruits, etc.).