Chou Collection, Upper Volume
Radical: Mouth (kǒu)
Entry: tan
Kangxi Strokes: 15
Page 208, Entry 01
Pronounced tan (rising tone). Pronunciation is identical to that of tan (rising tone).
According to the Explaining Graphs and Analyzing Characters (Shuowen Jiezi), it was originally written as a variant form. The meaning is to contain or hide deeply. The character is composed of the radical for mouth, with tan providing the phonetic element.
The Jade Chapter (Yupian) cites a passage from the Book of Zhuangzi (Zhuangzi): Great sweetness and craving (tan).
Additionally, according to the Collected Rhymes (Jiyun), it is pronounced tan. The meaning is to covet or seek greedily.
Verification: The text cites the Horses Hooves chapter of the Book of Zhuangzi (Zhuangzi Mati pian) as the source for the phrase Great sweetness and craving. Upon examination, this phrase does not appear in the Horses Hooves chapter; it has been verified as a citation from the Book of Zhuangzi (Zhuangzi) as quoted in the Jade Chapter (Yupian). The reference has been corrected from Book of Zhuangzi, Horses Hooves chapter to Jade Chapter (Yupian) citation of the Book of Zhuangzi (Zhuangzi).