"PIE" . "91675" . _:Bedc167e49b8b37b4adfb31f5b916cea9 . "Etymology for: bitūmen (la0170)" . "*gʷet‑u‑" . "*gʷet‑u‑" . . _:Bedc167e49b8b37b4adfb31f5b916cea9 "*gʷet‑u‑" .