Original meaning: make it act quickly. Urge, urge, urge.
Extension: Extension refers to "accelerating the generation, development and change of things" such as catalysis, promoting birth, hypnosis, lactation and fattening.
Yi Yan: Also used as a surname.
Interpretation of Ancient Books Kangxi Dictionary:
Tang Yun, Ji Yun and Yunhui? Cut the warehouse, Intree. Promotion and coercion. This book is interesting, ancient and interesting, but it is not urgent. The urge is added by later generations. Urging interests to be synchronized, true words.