Where does “पिअल” come from?

पिअल (Bhojpuri) comes from Sanskrit पिबति, from Proto-Indo-European peh₃- — to drink.

पिअल (Bhojpuri): to drink

Definitions

Step	Language	Word	Meaning
1	Sanskrit	पिबति	to drink, quaff, suck, sip, swallow; to imbibe,...
2	Proto-Indo-European	peh₃-	to drink

पिअल — Etymology, Origin & Word History | Etymology Explorer