1. "Jia", a standard secondary character in modern Chinese, is pronounced ji in Mandarin, which was first seen in the Jin Dynasty and belongs to the pictophonetic character in the Six Books.
2. The basic meaning of "Jia" is a headdress of ancient women, which is made of hair into a false bun, called "vice"; Then fasten the pair on the head with a hairpin and add jade decorations, called "Jia"; Jiashu has the function of indicating identity. For example, "Six Jias" is used by Mrs. Hou.
