silent

宓 is composed of 宀 (roof) and 必. 宀 is a pictograph of a roof and indicates the interior of a building, while 必 conveys the idea of tightly gripping the wooden handle of a dagger-axe and carries the senses of holding firmly without letting go and of pressure. Therefore, 宓 conveys the idea of an extremely enclosed place. Its original meaning is to hide or to be crowded, but this sense was later taken over by 密. Nowadays, 宓 means peaceful or tranquil.