一切經音義 12.281

12.281

蹈空（徒到反劉兆注公羊傳云蹈履行也說文踐也從足舀羊小反聲）。

蹈空 (*tú* + *dào* fanqie; Liu Zhao's commentary on the *Gongyang Zhuan* states: '蹈 means to tread or walk;' the *Shuowen* states: 'To tread upon; composed of 'foot' (足) with *yǎo* (舀), *yáng* + *xiǎo* fanqie, as phonetic').