Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† lĕontŏpŏdĭon, ĭi, n., = λεοντοπόδιον, i. q. leontopetalon, a plant, lion’s-foot, Plin. 26, 8, 34, § 52; App. Herb. 7.