I have seen the word "Dexi", which seems to have come from an ancient book, but I can't remember it clearly. I hope people who have read a lot can make it clear. Thank you!

An Deyin, a native of Shiqian, a great scholar, returned home knowing Bazhou. It is suggested to learn and advocate ancient rituals, and the style of scholars has changed. (A Record of the Unification of the Qing Dynasty)

An Yiyin, a native of Shiqian, grew up in his hometown. He was appointed as the guardian and returnee of Bazhou. It is suggested that he study, advocate Ming and Gu Li, and be a scholar. (Guizhou Tongzhi)

In the first month of the lunar calendar, it is a day when Yi won many letters ("Three Meetings")

The text, the word "",is widely printed, and the three-character table is printed in German ("Six Arts and One Record").