Where does “قىرغىزىستان” come from?

قىرغىزىستان (Uyghur) comes from Uyghur ـىستان, from Chagatai ـستان, from Classical Persian ـِسْتَان, from Middle Persian -stʾn', from Old Persian 𐎿𐎫𐎠𐎴, from Proto-Iranian stā́nam, from Proto-Indo-Iranian stʰáHnam, from Proto-Indo-European *steh₂-.

Ancestry of “قىرغىزىستان”, step by step

قىرغىزىستان traces back through two separate lines of ancestry.

via Uyghur ـىستان

StepLanguageWordMeaning
1Uyghurـىستانistan
2Chagataiـستان
3Classical Persianـِسْتَان
4Middle Persian-stʾn'makes nouns of places; of indeterminate function
5Old Persian𐎿𐎫𐎠𐎴place
6Proto-Iranianstā́nam
7Proto-Indo-IranianstʰáHnam
8Proto-Indo-European*steh₂-

via Uyghur قىرغىز

StepLanguageWordMeaning
1UyghurقىرغىزKyrgyz
Every word from Proto-Indo-European *steh₂-Every word from Middle Persian -stʾn'Every word from Classical Persian ـِسْتَان