Origin

This character combines two components to express the idea of covering or concealing. The top part, a grass radical, often indicates plants or vegetation. The bottom part, which itself contains the elements for thread and a hand gesture, relates to worn-out fabric or something frayed and covering. Together, these suggest vegetation or material that covers and conceals things, like plants growing over or worn cloth draping across something. The sense of "ruined" or "worn out" probably developed from the image of old, tattered material, while "shade" and "cover" come from how such materials obscure what lies beneath.