_:B97c41a6ab3e05a7fce242dc8c829361d "*seh₁‑ro‑" . "PIE" . "124555" . _:B97c41a6ab3e05a7fce242dc8c829361d . "Etymology for: sērus (la1501)" . "*seh₁‑ro‑" . "*seh₁‑ro‑" . .