Si Collection, Middle Volume
Radical: Fire (huǒ)
Character: Re
Kangxi strokes: 19
Page 686, Entry 17
Pronounced ruo (falling tone).
According to the Explaining Graphs and Analyzing Characters (Shuowen Jiezi), it was originally written in another form. It means to burn. It is formed by the radical for fire and the phonetic component yi.
Note: Xu Xuan stated that the original text did not contain the character yi, and it should be composed of the radical for fire and the character for grass, with a shortened phonetic component from the character re.
In the Commentary on the Spring and Autumn Annals (Zuo Zhuan), Year 28 of Duke Xi: Burn the house of Xi Fuji.
In the Rites of Zhou (Zhouli), Spring Offices: Whenever divining, use bright fire to burn the divination brush.
In the Records of the Grand Historian (Shiji), Annals of Qin Shi Huang: Entering fire without being burned.
In the Rhyme Dictionary (Guangyun), it is the same as the character ruo.
Also in the Corrected Tang Rhymes (Tangyun Zheng): Pronounced rui (falling tone), with the same meaning.