Mawmet n. A puppet; a doll; originally, an idol, because in the Middle Ages it was generally but falsely believed that the Muslims worshiped images representing Mohammed. (Obs.)
... proper to, and a leading feature of, most of the false religions of the world. Men did not pause to remember that Mahomedanism is the great exception, being as it is a protest against all idol-worship whatsoever; so that it was a signal injustice to call an idol a 'mawmet' or a ... — On the Study of Words • Richard C Trench