It was first seen in Oracle bone inscriptions, which originally meant the arrow of invitation to trust, extended to respect, and extended to the title of respect for the same official. Later, as the third of the twelve branches, it also represents the "wood" in the first month of the lunar calendar and the "tiger" in the zodiac.
Twelve earthly branches: Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai.
In the ancient calendar of China, A, B, C, D, E, Ji, G, Xin, Ren and Gui were called "Ten Days of Dry", with Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You and Xu; The sea is called "Twelve Earthly Branches". The two cooperate with each other in a fixed order, forming the discipline of cadres and branches.
Extended data:
Yin word group:
Yin Shi 1
Pinyin: [yín shí]?
Explanation: The old method of timing refers to the time from 3 pm to 5 pm.
2. Yin Hao
Pinyin: [yí n h m 40]?
Interpretation: Formerly known as a colleague with friendship. "Qi Lu Deng" Chapter 102: "Loupu! Or the ancestors of Syria had a friendship last year, or the parents of Syria were good friends. " Liang Qing Zhang Ju's "Returning to the Field, Sorrow, Wen Song Qing Palace": "(Mr. Ce) scattered food in the mediation of the same city, and there was no leisure in cold and summer."
3. Yin Ye
Pinyin: [yín yú]?
Interpretation: compliment.
4. Brother Yin
Pinyin: [yí n xi not ng]?
Interpretation: honorifics among colleagues in the old days.