一切經音義 19.291

19.291

亘然（岡鄧反集訓云亘遠過也毛詩傳曰亘遍也說文從木作𣕲𣕲竟也今時用亘字本古文亘字也說文從曰上下各一亘之意也）。

亘然 (pronounced with the fanqie g[ang] + [d]eng; the Jixun says: "Gen means to extend far across"; the Mao Commentary on the Classic of Poetry says: "Gen means pervasive"; the Shuowen jiezi writes it with the wood radical [木] as 𣕲: "𣕲 means to reach the end"; the character 亘 used nowadays is originally the ancient character for gen; the Shuowen jiezi says it is written with 'sun' [曰] and one horizontal stroke above and below each, conveying the sense of spanning across).