_:B53147c657df13635dabc70d210544883 "*perkʷ‑o/u‑" . "PIE" . "121145" . _:B53147c657df13635dabc70d210544883 . "*perkʷ‑o/u‑" . "Etymology for: quercus (la1353)" . "*perkʷ‑o/u‑" . .