Kāśmīra and Muslim in Tibetan are called kha che, and one would think that the etymology “Big Mouth” is self-evident though not self-explanatory. It is, however, most likely that we are dealing here with a false friend and that actually the name represents a slightly corrupt phonetic rendering of kaccha. See MW (s.vv. kāśmīra & kaśmīra): kacchādi (“kaccha, and so on”). That the Tibetan name Kha-che is derived from Kāśmīra is pointed out in bsTan-gos’s Bod skad ming brda rig pa (p. 63) but does not explain how.