Where does “-অই” come from?

-অই (Old Bengali) comes from Prakrit -𑀅𑀇, from Sanskrit -अति.

Ancestry of “-অই”, step by step

Step	Language	Word	Meaning
1	Prakrit	-𑀅𑀇	—
2	Sanskrit	-अति	—

Words derived from “-অই”

-এ

Every word from Sanskrit -अति →Every word from Prakrit -𑀅𑀇 →