續一切經音義 10.120

10.120

八埏（下衍仙反漢書音義云八埏即地之八際也古今正字從土延聲）。

Baxian 八埏 (The second character has the fanqie phonetic spelling [y- + -ān > y-] yǎn xiān 反. The Hanshu yinyi states: "The eight xian are the eight limits of the earth." The Gujin zhengzi states it takes the earth radical with 延 as the phonetic).