Proto-Norse ᛚᚨᚢᚲᚨᛉ

← Old English lēac (cognate)

← English leek (cognate)

← Proto-Germanic *laukaz (inherited)

→ Danish løg (inherited)

→ Faroese leykur (inherited)

→ Old Swedish løker (inherited)

→ Icelandic laukur (inherited)

→ Norwegian Bokmål løk (inherited)

→ Norwegian Nynorsk lauk (inherited)

→ Old Norse laukr (inherited)

→ Swedish lök (inherited)