一切經音義 15.150

15.150

窟中（困兀反文字音義地室也從穴形聲字也或從土作堀也）。

Inside the cave (窟中; *kùn* + *wù* fanqie. The *Wenzi yinyi* states: "An earthen chamber; derived from the *xuè* (cave) radical, a phono-semantic character." It is also written with the *tǔ* (earth) radical as 堀).