Where does “teść” come from?
teść (Polish) comes from Old Polish cieść, from Proto-Slavic tьstь, from Proto-Balto-Slavic *tíśtis, from Proto-Indo-European teḱ- — to sire, beget.
teść (Polish): father-in-law
Ancestry of “teść”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Old Polish | cieść | — |
| 2 | Proto-Slavic | tьstь | father-in-law |
| 3 | Proto-Balto-Slavic | *tíśtis | — |
| 4 | Proto-Indo-European | teḱ- | to sire, beget |