Where does “świeczka” come from?

świeczka (Polish) comes from Polish świeca, from Proto-Slavic svěťa, from Proto-Slavic světъ, from Proto-Balto-Slavic śwaitas, from Proto-Indo-European ḱweyt- — to shine.

Ancestry of “świeczka”, step by step

StepLanguageWordMeaning
1Polishświecacandle
2Proto-Slavicsvěťacandle
3Proto-Slavicsvětъlight; world
4Proto-Balto-Slavicśwaitas—
5Proto-Indo-Europeanḱweyt-to shine
Every word from Proto-Indo-European ḱweyt- →Every word from Proto-Balto-Slavic śwaitas →Every word from Proto-Slavic světъ →