Origin

The character 較 combines the radical 車 (vehicle, cart) on the left with 交 (which sounds like "kō") on the right as a sound hint. The connection between "cart" and "compare" comes from the idea of placing carts side by side to measure and contrast them — when you line things up next to each other, you can see their differences and similarities. The 交 component tells you roughly how to pronounce the character, while 車 provides the semantic category. Over time, the meaning expanded from the physical act of comparing carts to the general sense of contrasting or comparing anything.