←
Proto-Germanic *airiz (inherited)
←
Proto-West Germanic *airi (inherited)
←
Old High German ēr (cognate)
←
Norwegian årle (cognate)
←
Old Norse árla (mention)
←
Old Frisian ēr (cognate)
←
Albanian errët (cognate)
←
Albanian herët (mention)
→
Old High German er (cognate)