The word "沉寂" is formed by combining the characters 沉 and 寂. 沉, meaning "to sink" or "deep", is composed of the water radical (氵) and the component 冗, suggesting depth or heaviness. 寂, meaning "quiet" or "lonely", is composed of the roof radical (宀) and the component 叔, implying stillness within an interior. Together, they create a compound word where 沉 modifies 寂 to convey "deep silence" or "profound stillness".