一切經音義 31.342

31.342

𣢑笑（上齒之反說文𣢑𣢑戲笑皃也從欠㞢聲㞢即古之字也或作嗤經文作[山/虫]誤也）。

Giggling (the upper character is [pronounced] fanqie: 齒 [chǐ] + 之 [zhī]; Shuowen: “Chi-chi is the appearance of playful laughter; formed with the 欠 semantic radical and 㞢 as phonetic; 㞢 is an ancient character for 之.” It is also written as 嗤; the sūtra text writes [山/虫], which is an error).