Pronounced gai (falling tone) in the Guangyun and kai (falling tone) in the Jiyun, with the same pronunciation as "gai." It means maltose. Also, pronounced jie (falling tone) in the Guangyun and yijie (falling tone) in the Jiyun, with the same pronunciation as "yi." The Guangyun explains it as the breath of smoothly eating. Also, the Jiyun equates it with the character "ai."