"PIE" . "NaN"^^ . _:B4bf2ef60eef615dc512c885a35d8e239 . "Etymology for: po‑ (la1274)" . "*h₂p‑o" . "*h₂p‑o" . . _:B4bf2ef60eef615dc512c885a35d8e239 "*h₂p‑o" .