Zbu
Zbu is a Sino-Tibetan language spoken in China. Glottolog rates it shifting.
See it on the globeOpen in the family tree
Zbu (Chinese: 日部; pinyin: Rìbù), or Showu, is a Gyalrong language spoken in Sichuan, China.
The Khalong Tibetan language has a Zbu/Showu substratum, as evident from its phonology and grammar.
From Wikipedia · Zbu language · CC BY-SA 4.0