I can find one etyomoly for "mazette" used as a noun, but it doesn't fit very well to the use of the interjection. Maybe it's linked the same root as "maze" an

I can find one etyomoly for "mazette" used as a noun, but it doesn't fit very well to the use of the interjection. Maybe it's linked the same root as "maze" and old english "amazian" (to confuse/perplex).