1. Yi, the standard secondary character in modern Chinese, with the pronunciation of y ǐ in Mandarin, was first seen in the era of Xiaozhuan in the Qin Dynasty.
2. The basic meaning of the word "Yi" refers to "Coix", such as Coix (the kernel of Coix).
3. In modern Chinese, for the use of "Yi", see "Yi", a perennial herb, such as Yimi.
