Old Norse hertogi

← Middle Low German hertôge (borrowed)

← Proto-West Germanic *harjatogō (derived)

← Proto-Indo-European *ker- (root)

← Proto-Indo-European *dewk- (root)

← Old Saxon heritogo (derived)

→ Faroese hertogi (inherited)

→ Icelandic hertogi (inherited)

→ Norwegian Bokmål hertug (derived)

→ Norwegian Nynorsk hertug (derived)

→ Old Norse hertogadómr (suffix)

→ Old Norse hertogadœmi (compound)

→ Old Norse hertoganafn (compound)

→ Swedish hertig (inherited)