Where does “lightsum” come from?

lightsum (Middle English) comes from Middle English light, from Old English lēoht, from Proto-West Germanic leuht, from Proto-Germanic leuhtą, from Proto-Indo-European lewktom, from Proto-Indo-European lewk- — bright; to shine; to see.

lightsum (Middle English): bright; sparkling

Definitions

  1. bright; sparkling

Ancestry of “lightsum”, step by step

lightsum traces back through two separate lines of ancestry.

via Middle English light

StepLanguageWordMeaning
1Middle EnglishlightThe radiation which allows for vision by...
2Old Englishlēohtluminous, bright, light, clear, resplendent,...
3Proto-West Germanicleuhtlight, bright; light
4Proto-Germanicleuhtąlight
5Proto-Indo-Europeanlewktom
6Proto-Indo-Europeanlewk-bright; to shine; to see

via Middle English som

StepLanguageWordMeaning
1Middle Englishsomsome
2Old Englishsumsome
3Proto-West Germanic*sumsome
4Proto-Germanicsumazsome (one), a certain (one)
5Proto-Indo-Europeansem-together, one

Words derived from “lightsum

Every word from Proto-Indo-European lewk-Every word from Proto-Indo-European lewktomEvery word from Proto-Germanic leuhtą