Words that come from Proto-Indo-European lewk-so-

102 words across 9 languages descend from Proto-Indo-European lewk-so- — including ljus, lyst, lystig, lys, lysa, lysa, lyse, lýsing.

See the etymology of lewk-so- itself →

Norwegian Bokmål (32)

Norwegian Nynorsk (21)

Danish (16)

Swedish (13)

Icelandic (7)

Faroese (7)

Old Swedish (2)

Old Norse (2)

Proto-Germanic (2)