Where does “cieść” come from?

cieść (Old Polish) comes from Proto-Slavic tьstь, from Proto-Balto-Slavic *tíśtis, from Proto-Indo-European teḱ- — to sire, beget.

Ancestry of “cieść”, step by step

StepLanguageWordMeaning
1Proto-Slavictьstьfather-in-law
2Proto-Balto-Slavic*tíśtis—
3Proto-Indo-Europeanteḱ-to sire, beget

Words derived from “cieść”

Every word from Proto-Indo-European teḱ- →Every word from Proto-Balto-Slavic *tíśtis →Every word from Proto-Slavic tьstь →