Where does “মিচৰ” come from?

মিচৰ (Assamese) comes from Arabic مصر, from Turkish Mısır, from Ottoman Turkish مصر, from Arabic مِصْر — Egypt.

Ancestry of “মিচৰ”, step by step

Step	Language	Word	Meaning
1	Arabic	مصر	border, boundary, limit, march, neighboring...
2	Turkish	Mısır	Egypt
3	Ottoman Turkish	مصر	maize, corn
4	Arabic	مِصْر	Egypt

মিচৰ — Etymology, Origin & Word History | Etymology Explorer