"PIE" . "100177" . _:B734d79a7X3A195d1e795f5X3A6514 . "*dui‑bʰh₂u‑o‑" . "Etymology for: dubius (la0476)" . "*dui‑bʰh₂u‑o‑" . . _:B734d79a7X3A195d1e795f5X3A6514 "*dui‑bʰh₂u‑o‑" .