Zi Collection, Upper Volume, Page 48, Entry 03 Pronounced pu (falling tone) Refers to the navel. From "Wuyin Jiyun" (Five Tones Collected Rhymes): Also refers to internal organs. Also pronounced pi (falling tone), same pronunciation as "pi". Refers to accumulated illnesses. Originally written as "癖". Also, from "Guangyun" (Broad Rhymes), pronounced bo (entering tone), same pronunciation as "bo". Refers to small hard stems in beans. From "Xin Zilin" (New Forest of Characters).