Zi Collection, Middle Volume Radical: Mouth (kǒu) Page 213, Entry 05 Pronounced yōng (entering tone) — "Jiyun" Also called jī tóu (water chestnut). This refers to the qianshi. It is recorded in "Zhengzitong" that it is synonymous with "yōng" (to bank up earth to form fields). Qianshi is also called jī yōng. It does not derive from the character "㽫".