續一切經音義 6.71

6.71

脚踏（上正作腳音居勺反釋名曰脚却也以其坐時却後也下又作蹋同徒盍反切韻踐蹋也考聲以足蹈也說文從足[日/羽]聲[日/羽]音塔）。

Treading underfoot (脚踏: the first is standardly written as 腳, pronounced with the fanqie *j- / sh-*, the Shiming states: "The foot (jiao 脚) is what recedes (que 却), because when sitting it draws backward"; the second character is also written as 蹋, pronounced identically with the fanqie *t- / h-*, the Qieyun states: "To step and trample"; the Kaosheng says: "To tread with the foot"; the Shuowen says: "Derived from zu 足 with [日/羽] as phonetic; [日/羽] is pronounced ta 塔").