Origin

This character combines the bamboo radical at the top with a sound component below. Bamboo naturally grows in segments separated by hard rings or nodes, which led to the meaning "node" or "joint." The same visual idea of distinct sections naturally extended to mean "season" or "period"—distinct divisions of time, just as bamboo has distinct divisions along its stalk. The bottom component provides a sound hint for how to pronounce the character, rather than adding to the meaning. So the shape essentially pictures a segmented bamboo plant, while the pronunciation comes from the lower element.

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