一切經音義 15.216

15.216

臂膊（上卑義反從肉辟聲下補莫反俗字也正體從骨從博省聲也經文從月作膊非也）。

臂膊 (Arm / shoulder: the upper character has the fanqie 卑 + 義 [bì], composed of 肉 with 辟 phonetic. The lower character has the fanqie 補 + 莫 [bó]; it is a vulgar character. The standard form is composed of 骨 with the abbreviation of 博 as phonetic. In the sūtra text, writing it with 月 as 膊 is incorrect).