_:B1a16b9f53cebc224e4e9656d7c6a4549 "*seh₁‑ro‑" . "PIE" . "124555" . _:B1a16b9f53cebc224e4e9656d7c6a4549 . "Etymology for: sērus (la1501)" . "*seh₁‑ro‑" . "*seh₁‑ro‑" . .