_:B1a552d116a571d878b91045efd4b554a "pet‑es‑" . _:B1a552d116a571d878b91045efd4b554a "*pet‑os" . "PIE" . . . "120145" . _:B1a552d116a571d878b91045efd4b554a . "*pet‑os;‑es‑ [n.]" . "Etymology for: prōtervus (la1321)" . "*pet‑os;‑es‑ [n.]" . .