Where does “पश्चिम बंगाल” come from?

पश्चिम बंगाल (Nepali) comes from Hindi पश्चिम बंगाल, from Bengali পশ্চিমবঙ্গ, from Bengali পশ্চিম, from Sanskrit पश्चिम, from Sanskrit पश्चा, from Proto-Indo-Iranian pasčaH, from Proto-Indo-European *pos-kʷéh₁.

Ancestry of “पश्चिम बंगाल”, step by step

StepLanguageWordMeaning
1Hindiपश्चिम बंगाल
2Bengaliপশ্চিমবঙ্গ
3Bengaliপশ্চিমwest; the western part of a country or territory;...
4Sanskritपश्चिमwest, western
5Sanskritपश्चाbehind; after, later; westward
6Proto-Indo-IranianpasčaH
7Proto-Indo-European*pos-kʷéh₁
Every word from Proto-Indo-European *pos-kʷéh₁Every word from Proto-Indo-Iranian pasčaHEvery word from Sanskrit पश्चा