Where does “এখান” come from?

এখান (Bengali) comes from Bengali এ, from Magadhi Prakrit 𑀏𑀅.

এখান (Bengali): here

Definitions

Step	Language	Word	Meaning
1	Bengali	এ	he, she, it
2	Magadhi Prakrit	𑀏𑀅	—

এখান — Etymology, Origin & Word History | Etymology Explorer