一切經音義 10.357

10.357

淤泥（於據反字書云水底青泥也韻英云澱滓從水於聲）。

Mire and mud (淤泥: [yū is] the fanqie yú + jù [於據]. The character dictionaries say it is the green mud at the bottom of the water. The Yunying says it is sediment and dregs. It is composed of shuǐ [水] with yū [於] as phonetic).