一切經音義 7.67

7.67

四衢（具于反爾雅云一達謂之路四達謂之衢郭璞云交道四出也說文亦同從行瞿其于反聲也）。

Crossroads (四衢; ju + yu fanqie. The Erya says: "A way leading one direction is called lu; a way leading four directions is called qu." Guo Pu says: "An intersection leading out in four directions." The Shuowen also agrees; it takes the movement radical (行) with qu (瞿, qi + yu fanqie) phonetic.).