_:Bb58d45210dd2990a677e15509d417f9b "*perkʷ‑o/u‑" . "PIE" . "121145" . _:Bb58d45210dd2990a677e15509d417f9b . "*perkʷ‑o/u‑" . "Etymology for: quercus (la1353)" . "*perkʷ‑o/u‑" . .