"PIE" . "115027" . _:B8af8f32c4dc7fff05915ef5b283c2f99 . "Etymology for: operiō (la1148)" . "*h₂uer‑i(e)‑ [pr.]" . "*h₂uer‑i(e)‑" . . _:B8af8f32c4dc7fff05915ef5b283c2f99 . _:B8af8f32c4dc7fff05915ef5b283c2f99 "*h₂uer‑i(e)‑" .