←
Old French -ier (derived)
←
Middle High German -ieren (derived)
←
Proto-Indo-European *h₃er- (root)
←
Proto-Indo-European *h₂epó (derived)
←
Proto-Indo-European *h₃er- (derived)
←
Proto-Italic *ab (derived)
←
Proto-Italic *orjōr (derived)
←
Norwegian Bokmål abort (suffix)
←
Norwegian Bokmål ere (suffix)
←
Old Norse -era (inherited)