"PIE" . . . "122296" . _:BX2D48d30c45X3A197509870eaX3AX2D7f47 . "*Hreu‑os [n.]" . "Etymology for: rūs (la1423)" . "*Hreu‑os [n.]" . . _:BX2D48d30c45X3A197509870eaX3AX2D7f47 "*Hreu‑os" .