Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
1. pĕdum, i, n. [pes], a shepherd’s crook, a sheep-hook, Verg. E. 5, 88: pedum est baculum incurvum, quo pastores utuntur ad comprehendendas oves, aut capras a pedibus: cujus meminit etiam Vergilius in Bucolicis, Fest. p. 249 Müll.; cf. id. ib. p. 210 Müll.; cf. also: pedum virga incurvata, unde retinentur pecudum pedes, Serv Verg. l. l.