Where does “Cirgeastáin” come from?

Cirgeastáin (Irish) comes from Kyrgyz Кыргызстан, 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 “Cirgeastáin”, step by step

StepLanguageWordMeaning
1KyrgyzКыргызстан—
2Kyrgyz-станSuffix to form country names when added to names...
3Persianـِسْتَانْplace of
4Old Persian𐎿𐎫𐎠𐎴place
5Proto-Iranianstā́nam—
6Proto-Indo-IranianstʰáHnam—
7Proto-Indo-European*steh₂-—
Every word from Proto-Indo-European *steh₂- →Every word from Kyrgyz -стан →Every word from Kyrgyz Кыргызстан →