Where does “światłowód” come from?

światłowód (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.

światłowód (Polish): optical fibre

Definitions

  1. optical fibre

Ancestry of “światłowód”, step by step

światłowód traces back through two separate lines of ancestry.

via Polish światło

StepLanguageWordMeaning
1Polishświatłolight
2Old Polishświatły—
3Proto-Slavicsvětьlъbright
4Proto-Slavicsvětъlight; world
5Proto-Balto-Slavicśwaitas—
6Proto-Indo-Europeanḱweyt-to shine

via Polish wodzić

StepLanguageWordMeaning
1Polishwodzićto lead
2Proto-Slavicvoditito lead, to conduct
3Proto-Balto-Slavicwádīˀteito lead, to conduct
4Proto-Indo-Europeanwedʰ-to bind, to secure; to pledge, to guarantee; to...
Every word from Proto-Indo-European ḱweyt- →Every word from Proto-Balto-Slavic śwaitas →Every word from Proto-Slavic světъ →