一切經音義 7.5

7.5

源底 ("source and bottom"): The first character has the fanqie reading [ŋ- + -ʉɐn = yuán] (愚袁反). The Liji says: "Penetrating to the source of rites and music." Zheng Xuan says: "源 means root." The Guangya says: "The root of the myriad things is called 源." The Shuowen writes it 原, or 原, which are ancient characters.