一切經音義 47.271

47.271

過隙（丘逆反說文壁際孔也字從白上下小也）。

Passing through a crevice (guoxi; fanqie: 丘 + 逆 [q- + -i → qi]; the Shuowen jiezi states: an aperture between walls; the character is formed from 'white' [bai] with small above and below).