Wu Collection, Middle Volume
Radical: Sickness (bì)
Entry: yi
Kangxi stroke count: 11
Page 772, Entry 19
Tang Rhymes (Tangyun): Pronounced yi
Rhyme Collection (Yunhui) and Correct Rhymes (Zhengyun): Pronounced yi
Explanation of Characters (Shuowen): To injure.
Expanded Rhymes (Guangyun): Skin ulcers and injuries.
Explanation of Names (Shiming): The term yi signifies spreading; it refers to the skin opening up to form a wound.
Records of the Grand Historian (Shiji), Biography of Meng Tian: The hearts of the people under heaven are not yet settled, and those who have suffered wounds and injuries have not yet recovered.
Also, according to the Rhyme Collection (Yunhui), it is used interchangeably with the character pronounced yi.
Zuo Tradition (Zuozhuan), 16th Year of Duke Cheng: Ordered the military officers to inspect those with injuries and wounds.