←
Proto-Indo-European *h₁ers- (root)
←
Proto-Indo-European *-tis (derived)
←
Proto-Indo-European *h₂epó (derived)
←
Proto-Indo-European (derived)
←
Proto-Indo-European *h₁ers- (derived)
←
Proto-Italic *-tjō (derived)
←
Proto-Italic *ab (derived)
←
Proto-Italic *erzāō (derived)