Proto-Germanic *ferudi

→ Cimbrian bèart (inherited)

→ Danish fjor (inherited)

→ Ancient Greek πέρυσι (cognate)

→ Alemannic German fëret (inherited)

→ Norwegian Nynorsk fjor (inherited)

→ Old Norse fert (inherited(non/de))

→ Old Norse fjǫrð (inherited)

→ Swedish i fjor (inherited)

→ Swedish i fjol (inherited)