Origin

The character combines thread or fabric (the left component showing twisted strands) with the idea of something fixed or settled (the right component). When thread that was supposed to stay in place becomes unfixed or unsettled, it unravels or comes apart at the seams. This naturally extended to mean something beginning to open or split, and even the slight opening of a smile. The character essentially shows how ordered threads fall into disorder when they come undone.

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