Hui 
(hwē) also Hwei (hwā)
(hwē) also Hwei (hwā)n. pl. Hui or Huis also Hwei or Hweis
A member of a traditionally Muslim people of northwest China, descended chiefly from the Han and an important minority of the Chinese population.
[Chinese (Mandarin) Huí, shortened from Huíhuí, from Middle Chinese xɦuaj-xɦuaj, any of various Muslim peoples of the Song dynasty.]