Old Norse laukr

← Old English lēac (cognate)

← Finnish laukka (cognate)

← Proto-Germanic *laukaz (inherited)

← Proto-Norse ᛚᚨᚢᚲᚨᛉ (inherited)

← Old High German louh (cognate)

← Old Saxon lōk (cognate)

← Proto-Slavic *lukъ (cognate)

→ Old English leac (cognate)

→ Old Church Slavonic лоукъ (cognate)

→ Danish løg (inherited)

→ Faroese leykur (inherited)

→ Old Swedish løker (inherited)

→ Icelandic laukur (inherited)

→ Norwegian Bokmål løk (inherited)

→ Norwegian Nynorsk lauk (inherited)

→ Russian лук (cognate)

→ Swedish lök (inherited)