←
Old English yrfe (inherited)
←
Old English ierfe (mention)
←
Old English ierfa (cognate)
←
English athel (mention)
←
Middle English erve (inherited)
←
Middle English erfe (mention)
←
Proto-Germanic *arbiją (inherited)
←
Proto-West Germanic *arbī (inherited)
←
Proto-Indo-European *h₃erbʰ- (derived)
→
English arval (mention)
→
Plautdietsch Oaw (cognate)
→
Saterland Frisian Ierwe (cognate)