"PIE" . "100177" . _:Bdd3a389d8689ec138555d3f0c26bd6b5 . "*dui‑bʰh₂u‑o‑" . "Etymology for: dubius (la0476)" . "*dui‑bʰh₂u‑o‑" . . _:Bdd3a389d8689ec138555d3f0c26bd6b5 "*dui‑bʰh₂u‑o‑" .