From ⲙⲩⲧ- (mut-) + ⲣⲉⲙ- (rem-) + Ⲡⲉⲓϫⲓⲅⲅ (Peicigg), literally meaning "language of the Beijing citizens".
ⲙⲩⲧⲣⲉⲙⲡⲉⲓϫⲓⲅⲅ (mutrempeicigg) f.