Where does “Татарстан” come from?

Татарстан (Kyrgyz) comes from Kyrgyz -стан, from Persian ـِسْتَانْ, from Old Persian 𐎿𐎫𐎠𐎴, from Proto-Iranian stā́nam, from Proto-Indo-Iranian stʰáHnam, from Proto-Indo-European *steh₂-.

Ancestry of “Татарстан”, step by step

StepLanguageWordMeaning
1Kyrgyz-станSuffix to form country names when added to names...
2Persianـِسْتَانْplace of
3Old Persian𐎿𐎫𐎠𐎴place
4Proto-Iranianstā́nam—
5Proto-Indo-IranianstʰáHnam—
6Proto-Indo-European*steh₂-—
Every word from Proto-Indo-European *steh₂- →Every word from Kyrgyz -стан →Every word from Proto-Indo-Iranian stʰáHnam →