一切經音義 2.289

2.289

涉壙 (wading through the wilderness; the former is shi/ye fan; the Han Text of the Odes says 涉 means 'to ford'; the Book of Han says 'to traverse'; Shuowen jiezi says 'to wade through water on foot; an ideogram composed of 步 and 林, now abbreviated as 涉'; the latter is ku/bang fan; the Mao Commentary on the Odes says 壙 means 'empty'; Guangya says 'vast'; according to the Qiesheng, it describes the distant expanse of plains and wilderness; it is also written 曠 or 懭, which are also interchangeable).