Where does “teściowa” come from?

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

teściowa (Polish): mother-in-law

Definitions

  1. mother-in-law

Ancestry of “teściowa”, step by step

StepLanguageWordMeaning
1Polishteśćfather-in-law
2Old Polishcieść—
3Proto-Slavictьstьfather-in-law
4Proto-Balto-Slavic*tíśtis—
5Proto-Indo-Europeanteḱ-to sire, beget
Every word from Proto-Indo-European teḱ- →Every word from Proto-Balto-Slavic *tíśtis →Every word from Proto-Slavic tьstь →