一切經音義 40.301

40.301

兩髀（鼙米反說文云股外也從骨卑聲亦作䯗經從肉作䏶俗字也）。

兩髀 (鼙 + 米 fanqie; the Shuowen says: “The outer side of the thigh; it is derived from [the semantic component] 骨 (bone) and has 卑 as its phonetic component; it is also written䯗”; the sūtra text writes it with 肉 (flesh) as 䏶, which is a vulgar character).