Old Norse járn

← Old English īsern (mention)

← Proto-Germanic *īsarną (inherited)

← Old High German isarn (mention)

→ Old English isern (cognate)

→ Danish jern (derived)

→ Faroese jarn (inherited)

→ Westrobothnian jarn (inherited)

→ Jamtish jáðn (inherited)

→ Icelandic járn (inherited)

→ Icelandic Eldjárn (mention)

→ Norwegian Bokmål jern (derived)

→ Norwegian Nynorsk jarn (mention)

→ Norwegian jedn (mention)

→ Swedish järn (inherited)