續一切經音義 2.64

2.64

遽即（上其倨反字書云急疾也切韻云戰慄也說文云從辵豦聲也豦音同上經文作遽俗非也）。

遽即 (The first character is pronounced with the fanqie *j-*, [ju], from 其 and 倨. The character books say: 'It means urgent and swift.' The *Qieyun* states: 'It means trembling with fear.' The *Shuowen* states: 'It takes 辵 as semantic and 豦 as phonetic'; 豦 has the same sound as above. Sūtra texts write 遽, which is a vulgar and incorrect form.)