The Rgyalrong languages are a group of unwritten non-Tibetic languages spoken in north-western Sichuan Province, China. This paper provides an in-depth analysis of the Brag-bar (a dialect of Situ Rgyalrong) kinship terminology at the synchronic level, and then by using both internal reconstruction and comparative method, we attempt to explain the directionality of both formal and semantic changes in the Brag-bar terminology. Thus we demonstrate that the present kinship system of Brag-bar (Situ) originates from a system with Omaha skewing.
