köken: Etymology tree Proto-Indo-European *h₁éǵʰ Proto-Indo-European *-s Proto-Indo-European *h₁éǵʰs Proto-Italic *eks Latin ex Latin ex- Proto-Indo-European *dʰewh₂- Ancient Greek τύφω (túphō) Proto-Indo-European *h₂el-der.? Proto-Italic *-ālis Latin -ālis Latin -āre Medieval Latin stuphabor.? Proto-Indo-European *dʰewbʰ-der.? Proto-Indo-European *tsewbʰ-der.? Proto-Germanic *steubaną Proto-Germanic…