盍, a compound character to express the meaning “cover”, serves as a phonetic component to form characters.
盍 has almost lost its original meaning of “cover” and is mostly used in a question with the meaning of “why” or “why not”.
Characters formed by the phonetic component 盍
阖 熆 篕 hé
磕 瞌 礚 搕 醘 榼 嗑 搕 kē
濭 濭 ǎi
溘 蓋 馌/饁 廅 kè gài yè è