"PIE" . . . "120145" . _:B5e3cfaa0d52e9ce96050bc72bfa1f130 . "*pet‑os;‑es‑ [n.]" . "Etymology for: prōtervus (la1321)" . "*pet‑os;‑es‑ [n.]" . . _:B5e3cfaa0d52e9ce96050bc72bfa1f130 "pet‑es‑" . _:B5e3cfaa0d52e9ce96050bc72bfa1f130 "*pet‑os" .