Where does “પંજાબી” come from?

પંજાબી (Gujarati) comes from Gujarati પંજાબ, from Classical Persian پنجاب, from Classical Persian آب, from Middle Persian ʾp̄, from Old Persian 𐎠𐎱𐎡𐎹𐎠, from Proto-Iranian Hā́fš, from Proto-Indo-Iranian Hā́ps, from Proto-Indo-European h₂ep- — water, body of water.

પંજાબી (Gujarati): Of or pertaining to Punjabi language, Punjabi...

Definitions

Of or pertaining to Punjabi language, Punjabi...

Ancestry of “પંજાબી”, step by step

Step	Language	Word	Meaning
1	Gujarati	પંજાબ	—
2	Classical Persian	پنجاب	—
3	Classical Persian	آب	water
4	Middle Persian	ʾp̄	water
5	Old Persian	𐎠𐎱𐎡𐎹𐎠	into the water
6	Proto-Iranian	Hā́fš	water
7	Proto-Indo-Iranian	Hā́ps	water
8	Proto-Indo-European	h₂ep-	water, body of water

Every word from Proto-Indo-European h₂ep- →Every word from Proto-Indo-Iranian Hā́ps →Every word from Proto-Iranian Hā́fš →