"PIE" . "124520" . _:B2c675c023b1cc51b97b767c5c920db23 . "*sers‑h₂‑" . "Etymology for: serra (la1499)" . "*sers‑h₂‑" . . _:B2c675c023b1cc51b97b767c5c920db23 "*sers‑h₂‑" .