Note: Do not rely on this information. It is very old.
Khmu
Khmu, a wild tribe of North Siara, in the hilly district between Vien-Shau and Luang l'raliang. They are the Kamu and Kamet of MacLeod, and appear to be a remnant of a large nation including the Khas, Mis, Does, and Lemets, whose domain was invaded and broken into fragments by the Laotians at some remote epoch.. All these speak a language offering merely dialectic differences, but quite distinct from that of the Laotians and Siamese.