mufti

In the Islamic tradition, a mufti is a professional jurist who interprets Muslim law. When religious muftis were portrayed on the English stage in the early 19th century, they typically wore costumes that included a dressing gown and a tasseled cap—an outfit that some felt resembled the clothing preferred by the off-duty military officers of the day. The clothing sense of mufti, which first appeared in English around that same time, is thought to have developed out of this association of stage costume and civilian clothing.