Old Norse ljóss

← Proto-Germanic *leuhsaz (inherited)

← Proto-Indo-European *lewk- (root)

→ Danish lys (derived)

→ Faroese ljósur (derived)

→ Old Swedish lius (inherited)

→ Icelandic ljós (derived)

→ Norwegian Bokmål lys (derived)

→ Norwegian Nynorsk lys (derived)

→ Norwegian Nynorsk ljos (derived)

→ Old Norse ofljóst (affix)

→ Old Norse ljósleikr (suffix)

→ Swedish ljus (inherited)