Chui

Chui or Tsui is an ancient Chinese family name relating to a clan in ancient China. The Chinese character is 徐 , as is used interchangeably in Hong Kong traditional Chinese, Cantonese with and in Taiwan Traditional Character using Yun biu -音標;

This sound differently from "Xu" 徐 in Mandarin Pin Yin.

This Chinese character literally means slow.

As distinct "Hui" in Cantonese or "Xu" 許 in Standard Mandarin Pin Yin.

There is also "Cui"崔 in Standard Mandarin Pin Yin also a family name.