一切經音義 60.237

60.237

觸䯗（毗禮反韻英云䯗股外也即兩股是也腰已下膝已上㧾名為䏶從骨坒聲也律文從肉作䏶或作髀並俗字也）。

觸䯗 (Pronounced with the fanqie 毗禮 [bǐ]. The Yunying says: "The pi is the outside of the thigh; that is, both thighs. The region below the waist and above the knees is collectively called the thigh (䏶). Derived from bone with bi phonetic." In the Vinaya texts it is written with the meat radical as 䏶 or 髀, both of which are popular forms).