一切經音義 35.190

35.190

水蛭（真日反讀與質同音蒼頡篇云蛭水蟲也從虫至聲也）。

Leech (水蛭) (the second character is *zhen-ri* fan, read with the same sound as 質; Cang Jie pian says: "A leech is an aquatic insect"; it takes the insect radical and the *zhi* (至) sound).