Where does “лучь” come from?

лучь (Old East Slavic) comes from Proto-Slavic lučь, from Proto-Indo-European lowkis, from Proto-Indo-European lewk- — bright; to shine; to see.

Ancestry of “лучь”, step by step

StepLanguageWordMeaning
1Proto-Slaviclučьray; torch
2Proto-Indo-Europeanlowkis—
3Proto-Indo-Europeanlewk-bright; to shine; to see

Words derived from “лучь”

Every word from Proto-Indo-European lewk- →Every word from Proto-Indo-European lowkis →Every word from Proto-Slavic lučь →