Zi Collection, Page Position: Upper, Radical: Mouth (kǒu), Page 74, Entry 02 "Guangyun" and "Jiyun" both note the pronunciation as "du lang qie," sounding the same as "dang." "Yupian" explains it as the pulp within a melon. "Guangyun" states that "㼕瓤" refers to the central part of a melon. "Zhengzitong" says the bottom of a melon is called "㼕."