originates from

PWGmc *arbī 'inheritance' (arbī > ærβī > earβī > ierβī > ierfī > ierfi > ierfe) through pwgmc-to-oe

PGmc *arbja- 'inheritance' (arbja- > arβj > arβi > ærβi > earβi > ierβi > ierβ > ierf) through pgmc-to-oe