Where does “тещи” come from?
тещи (Old Church Slavonic) comes from Proto-Slavic teťi, from Proto-Balto-Slavic tektej, from Proto-Indo-European tekʷ- — to run, to flow.
тещи (Old Church Slavonic): to flow
Ancestry of “тещи”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Slavic | teťi | to flow, run |
| 2 | Proto-Balto-Slavic | tektej | — |
| 3 | Proto-Indo-European | tekʷ- | to run, to flow |