一切經音義 100.268

100.268

用磑（下五會反郭注尒疋云物堅也考聲云磨麥具也世本說公輸初作磑說文磨也從石豈聲）。

用磑 (the lower character is pronounced with the fanqie 五會 [wu + hui]. Guo's commentary on the Erya states: 'Hardness of an object.' The Kaosheng states: 'An implement for grinding wheat.' The Shiben explains: 'Gongshu first made the millstone.' The Shuowen states: 'To grind; formed from radical 石 with 豈 as the phonetic').