一切經音義 55.257

55.257

蹋刀山（上談合反廣雅云蹋履也史記云處後蹋鞠是也說文踐也從足[日/羽]聲[日/羽]音貪盍反也）。

蹋刀山 (the upper character is tan and he in fanqie; Guangya says: "Ta means to tread." Records of the Grand Historian says: "Standing in the rear, treading the leather ball"—this is it. Shuowen says: "To tread upon; it is composed of [the radical] 'foot' (足) with [日/羽] as the phonetic component." [日/羽] is tan and he in fanqie).