About
The character "盍" is structured with "去" positioned above "皿", where "皿" signifies a vessel, and the combination initially conveyed the idea of covering or lidding. Etymologically, it is associated with the concept of a cover, as reflected in related characters like "蓋". Its meaning transitioned from denoting a physical action to functioning as an interrogative adverb in classical Chinese, meaning "why not", due to semantic extension and phonetic loan.
Etymology Hide