1. pedis — de Vaan
pedis 'louse' [m. /] ( Andr.+) Derivatives:pedicosus 'full of lice' (Titin.+). Pit. *pezd-. PIE *pesd- 'annoying insect'. IE cognates: Skt pedu- PN (of a man, protected by the Asvins, by whom he was presented with white snake-killing honey), paidva- [m.] cthe snake-killing horse of Pedu5, 'an insect harming horses', YAv. pazdu- [m.] 'beetle, maggot*. Lat. pedicosus shows an original basis *pedi/ek-y which implies … — [de Vaan, s.v. pedis, p. 468]