Zi Collection, Page Position: Upper, Radical: Mouth (kǒu), Page 15, Entry 05.
"Jiyun" (Jiyun), "Yunhui" (Yunhui), and "Zhengyun" (Zhengyun) state that this character is pronounced "ju bai qie," with the same sound as "jie." "Yupian" (Yupian) explains it as a head covering. It is also written in a variant form (character shape missing). It is used interchangeably with the character "jie."