Origin

This character combines a wheel or vehicle element on the left (車) with a sound hint on the right (由) that tells you roughly how to pronounce it. The wheel or axle sense made sense because an axle is the rod that runs through the center of a wheel, holding it in place—the pivot point of rotation. Over time, the meaning expanded beyond just physical axles to any kind of axis or central stem, including the rolled scrolls used in East Asia, which were wound around a wooden stick or pole. The left component visually anchors the practical, mechanical sense of the character.

AI-generated (claude-haiku-4-5), not yet reviewed. Formation type (automated guess): Phono-semantic (meaning + sound hint).