Wenhuo, pronounced w ǒ n hu ǒ, a Chinese word, means to heat with fire, and its source is《 Ciyun and Jingyi Province 》。
1. Heat with fire.
2. Weak fire used for stewing or cooking. [1]
Song Dynasty, Mei Yaochen《 Ciyun and Jingyi Province 》: "Eucalyptus wine is warming up at the beginning, and the light breeze at the bottom of the curtain is ready to move the lamp."
Biye 《 Spring without flowers 》Chapter 10: "Ah Xing shouts, 'People are simmering“ Head stock ”！’” Han Dynasty· Xun Yue "Han Ji · Chengdi Ji I": "Winter lettuce is forced to warm up. It is not born from time to time. People should not worship it." The Book of the Han Dynasty, the Biography of the Honest Officials, and the Calling of the Faithful Officials wrote "Yun Huo", Yan Shigu Note: "Fire storage also." 
