From ⲙⲩⲧ- (mut-) + ϩⲣⲱⲙⲁⲓⲟⲥ (hrōmaios), literally meaning "language of the Romans."
ⲙⲩⲧϩⲣⲱⲙⲁⲓⲟⲥ (muthrōmaios) f.