This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
The exact historical development of 輂 is uncertain. It visually combines 共 (top) and 車 (vehicle), but the original semantic and phonetic roles are unclear.
The top 共 suggests something shared or together, and the bottom 車 is a vehicle. Imagine a shared cart or wagon, but remember the actual meaning is uncertain.
For キョク, imagine a shared cart making a sharp turn with a loud 'kyok' sound: kyok -> キョク.
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