一切經音義 12.39

12.39

瘖瘂（上邑今反說文不能言也下烏賈反埤蒼云瘂瘖也文字集略云口不能言也此等說皆相亂不分明案瘖者寂默而無聲瘂者有聲而無說舌不轉也今經文多作啞非也音厄啞啞笑聲也笑非經義）。

瘖瘂 (the first character is yì-jīn [fanqie: 邑今反]; Shuowen jiezi says unable to speak. The second character is wū-jiǎ [fanqie: 烏賈反]; Picang says 瘂 means mute [瘖]; Wenzi jilüe says the mouth being unable to speak; these explanations are all confused and indistinct: upon examination, 瘖 refers to being silent and producing no sound, whereas 瘂 refers to producing sound but being unable to form words because the tongue cannot turn; nowadays sūtra texts mostly write 啞, which is erroneous, pronounced è, the sound of laughing, and laughing is not the meaning of the sūtra).