Where does “lysfølsomhed” come from?

lysfølsomhed (Danish) comes from Norwegian Bokmål lysfølsom, from Norwegian Bokmål lys, from Danish lys, from Old Danish liūs, from Old Norse ljós, from Proto-Germanic leuhsą, from Proto-Indo-European lewk-so-m, from Proto-Indo-European lewḱ- — bright; to shine; to see.

lysfølsomhed (Danish): light sensitivity sensitivity to light

Definitions

  1. light sensitivity sensitivity to light

Ancestry of “lysfølsomhed”, step by step

lysfølsomhed traces back through two separate lines of ancestry.

via Norwegian Bokmål lysfølsom

StepLanguageWordMeaning
1Norwegian Bokmållysfølsomlight-sensitive
2Norwegian Bokmållyslight; fair, blonde; fair
3Danishlyslight; bright; fair, blond
4Old Danishliūs
5Old Norseljósa burning light; light of the sun
6Proto-Germanicleuhsąlight
7Proto-Indo-Europeanlewk-so-m
8Proto-Indo-Europeanlewḱ-lynx
9Proto-Indo-Europeanlewk-bright; to shine; to see

via Danish hed

StepLanguageWordMeaning
1Danishhedimperative of hedde; past tense of hedde
2Old Danishhet
3Old Norseheitrhot
4Proto-Germanichaitazhot
5Proto-Indo-European*keHy-to heat
Every word from Proto-Indo-European lewk-Every word from Proto-Indo-European lewḱ-Every word from Proto-Indo-European lewk-so-m