Qanat

Matt Bruce apparently googled for me hoping to learn something about qanat. He should come back a year or so, as they actually figure into my dissertation. The qanat system was the underground irrigation system of ancient Persia. Of more interest to me is the falaj system found in Oman, and also probably of Persian origin. J.C. Wilkinson used the archaeological remains of the aflaj as sources for medieval Omani social history, and there's some literature dealing with falaj construction that naturally refers to aqnat. (Is that the right plural? I just realized I don't know, and it's not in Hans Wehr. I haven't seen primary sources on this.)