This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
The exact historical development of 軭 is uncertain. It visually combines 車 (vehicle) with 匡, but the original semantic and phonetic roles are unclear.
The left side 車 suggests a vehicle, and the right side 匡 looks like a container. Imagine a stuck cart that cannot move, matching the kun-reading とどこお.る (to stagnate).
For キョウ, imagine a stuck cart in Kyoto: Kyoto -> キョウ, and the cart is とどこお.る (stagnating) in traffic.