Where does “Światłoch” come from?

Światłoch (Polish) comes from Polish światło, from Old Polish światły, from Proto-Slavic světьlъ, from Proto-Slavic světъ, from Proto-Balto-Slavic śwaitas, from Proto-Indo-European ḱweyt- — to shine.

Ancestry of “Światłoch”, step by step

StepLanguageWordMeaning
1Polishświatłolight
2Old Polishświatły—
3Proto-Slavicsvětьlъbright
4Proto-Slavicsvětъlight; world
5Proto-Balto-Slavicśwaitas—
6Proto-Indo-Europeanḱweyt-to shine
Every word from Proto-Indo-European ḱweyt- →Every word from Proto-Balto-Slavic śwaitas →Every word from Proto-Slavic světъ →