In the "Guangyun" (Guangyun), pronounced wu lai qie. In the "Jiyun" (Jiyun), pronounced yu kai qie, with the same pronunciation as "ai" (皚). "Shuowen Jiezi" (Shuowen Jiezi) explains it as teeth. The "Jiyun" (Jiyun) states that teeth are called 䶣. Additionally, in the "Guangyun" (Guangyun), pronounced gu ai qie. In the "Jiyun" (Jiyun), pronounced ke kai qie, with the same pronunciation as "gai" (該). The meaning is the same.