Where does “Тюменская область” come from?

Тюменская область (Russian) comes from Russian о́бласть, from Old Church Slavonic область, from Proto-Slavic obolstь, from Proto-Slavic obvolstь, from Proto-Slavic volstь, from Proto-Balto-Slavic walˀstis, from Proto-Indo-European h₂welh₁- — to rule; strong, powerful; hair; wool.

Ancestry of “Тюменская область”, step by step

Тюменская область traces back through two separate lines of ancestry.

via Russian о́бласть

StepLanguageWordMeaning
1Russianо́бластьregion, province; region, province, oblast
2Old Church Slavonicобластьpower, jurisdiction
3Proto-Slavicobolstьoblast, a region ruled over
4Proto-Slavicobvolstь—
5Proto-Slavicvolstьpower, authority, rule
6Proto-Balto-Slavicwalˀstispower, authority, rule
7Proto-Indo-Europeanh₂welh₁-to rule; strong, powerful; hair; wool

via Russian тюме́нский

StepLanguageWordMeaning
1Russianтюме́нскийTyumen city in Russia
2Russian-скийUsed to form adjectives from nouns or sometimes...
3Old East Slavic-ьскъ—
Every word from Proto-Indo-European h₂welh₁- →Every word from Proto-Balto-Slavic walˀstis →Every word from Proto-Slavic volstь →