Origin

This character shows a simplified picture of something protruding upward. The top stroke represents a flat surface, and the box shape below it suggests a hollow or depression. Together they create the visual impression of an uneven surface with a bump sticking out—exactly what "convex" means. The character essentially draws what it describes: a raised point against a flat background.

AI-generated (claude-haiku-4-5), not yet reviewed. Formation type (automated guess): Compound ideographic (combined meanings).