Where does “mushaira” come from?

mushaira (English) comes from Urdu مشاعره, from Arabic مُشَاعَرَة.

mushaira (English): A poetic symposium in North India and Pakistan at...

Definitions

Step	Language	Word	Meaning
1	Urdu	مشاعره	—
2	Arabic	مُشَاعَرَة	—

mushaira — Etymology, Origin & Word History | Etymology Explorer