"PIE" . "91675" . _:Bc3bf5de0f52afa1f78fb42175fe41dd9 . "Etymology for: bitūmen (la0170)" . "*gʷet‑u‑" . "*gʷet‑u‑" . . _:Bc3bf5de0f52afa1f78fb42175fe41dd9 "*gʷet‑u‑" .