Where does “тать” come from?
тать (Old Church Slavonic) comes from Proto-Slavic tatь, from Proto-Indo-European teh₂tis, from Proto-Indo-European (s)teh₂- — to do something secretly, conceal, thieve.
тать (Old Church Slavonic): thief
Ancestry of “тать”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Slavic | tatь | thief |
| 2 | Proto-Indo-European | teh₂tis | — |
| 3 | Proto-Indo-European | (s)teh₂- | to do something secretly, conceal, thieve |