Where does “उष्णकटिबंध” come from?

उष्णकटिबंध (Hindi) comes from Hindi उष्ण, from Sanskrit उ॒ष्ण.

Ancestry of “उष्णकटिबंध”, step by step

उष्णकटिबंध traces back through two separate lines of ancestry.

via Hindi उष्ण

StepLanguageWordMeaning
1Hindiउष्णhot, warm
2Sanskritउ॒ष्ण

via Hindi कटिबंध

StepLanguageWordMeaning
1Hindiकटिबंधgirdle, belt
Every word from Sanskrit उ॒ष्णEvery word from Hindi उष्ण