一切經音義 37.40

37.40

踣面（上蒲北反集訓云前倒也說文從足咅聲經文或從人作仆亦通時用也）。

Fall forward on one's face (踣面) (The upper character is pu + bei fan. The Jixun states: "To fall forward." The Shuowen states: "Composed with 'foot' [足] semantic and 咅 phonetic." In the scripture text it is sometimes written with 'person' [人] as 仆, which is also interchangeable in contemporary use).