Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
pellĭo, ōnis, m. [pellis], a furrier: supellex pellionis, Plaut. Men. 2, 3, 52; Lampr. Alex. Sev. 24; Dig. 50, 6, 6; Cod. Th. 13, 4, 2.