Origin

The character combines grass or plants on top with a component meaning "acceptable" or "passable" below. The shape most likely developed to express the idea of something irritating or harsh—like coarse grass or rough plant material that causes discomfort when it touches skin. Over time, this physical sense of roughness and irritation extended metaphorically to mean tormenting or scolding someone, capturing how harsh words or treatment can affect a person the way rough plants affect the body. The native readings for "fine" or "detailed" may reflect an older sense of the character relating to something small and prickly.