Where does “Каратоо” come from?

Каратоо (Kyrgyz) comes from Kyrgyz кара, from Proto-Turkic kara — black.

Ancestry of “Каратоо”, step by step

Каратоо traces back through two separate lines of ancestry.

via Kyrgyz кара

StepLanguageWordMeaning
1Kyrgyzкараblack
2Proto-Turkickarablack

via Kyrgyz тоо

StepLanguageWordMeaning
1Kyrgyzтооmountain
2Proto-Turkictāgmountain
Every word from Proto-Turkic kara →Every word from Kyrgyz кара →