一切經音義 6.63

6.63

[(土/儿/夕)*力]虛（力徵反玉篇陵侵侮也或單作夌說文夌越也從力夌聲也經文多從阜作陵是丘陵也或從水或從冫皆非本字也）。

Encroaching on emptiness ([(土/儿/夕)*力]虛: the first is pronounced with the fanqie 力徵 [líng]. The Yupian says: "To encroach upon and insult; sometimes written simply as 夌." The Shuowen says: "夌 means to overstep; deriving from 'strength' [力] with 夌 as phonetic." In the sūtra text it is frequently written with the mound radical [阜] as 陵, which refers to hills and mounds; or with 'water' or with the 'ice' radical—all of which are not the original character).