一切經音義 1.39

1.39

前蹤（上俗前字也說文先也正體從止從舟作歬說文不行而進謂之前止在舟上也蔡邕加刂刂水也廣二尋深二仞曰刂刂音古外反俗從刀者非也下足庸反淮南子曰行則有蹤爾雅迹也說文車迹也從足從聲也）。

Former footsteps [前蹤] (The first character is the vulgar form of qian [前]; Shuowen: "Preceding; standard form composed of 'stop' [止] and 'boat' [舟], written as [歬]." Shuowen: "Advancing without walking is called qian [前], standing in a boat." Cai Yong added the knife radical [刂], which means water, measuring two xun wide and two ren deep, pronounced gu-wai fan; the vulgar writing with the knife [刀] is incorrect. Second character: zu-yong fan [zōng]; Huainanzi: "When walking there are footprints [蹤]." Erya: "Tracks." Shuowen: "Ruts of a chariot; composed of 'foot' [足] with [從] phonetic").