一切經音義 79.246

79.246

欠㰦（下音去桂菀珠叢云引氣而張口曰欠㰦古今正字從欠去聲經從口作呿非也）。

Yawning and gaping [欠㰦]: (The lower character is pronounced qu [qu]. The Guiwan zhucong says: "Drawing breath and opening the mouth is called qianqu [欠㰦]." The Gujin zhengzi says: "Composed of qian [欠] with qu [去] as phonetic." The sūtra writes it with kou [口] as 呿, which is incorrect).