一切經音義 91.314

91.314

窀穸（上追倫反下音夕杜注左傳云窀厚也穸夜也謂葬埋於地下長夜也說文窀穸並從穴形聲字也）。

Zhunxi 窀穸 (The first character has the fanqie 追倫. The second character is pronounced xī. Du Yu's commentary on the Zuozhuan states: "Zhun means deep; xi means night"; it refers to being buried underground in the eternal night. The Shuowen jiezi states: "Zhun and xi both take the cave radical and are phono-semantic characters.")