"PIE" . "130442" . _:Bf35831ed74ddc6a24da49c1a7efc3826 . "Etymology for: vitrum (la1853)" . "*ued‑ro‑" . "*ued‑ro‑" . . _:Bf35831ed74ddc6a24da49c1a7efc3826 "*ued‑ro‑" .