The word 消逝 is a compound verb formed by combining two characters with related meanings: 消 (xiāo), which carries connotations of dissolving, fading, or disappearing, and 逝 (shì), which means to pass, to flow away, or to depart (often used for time or life). Together, they create a nuanced term meaning "to vanish gradually and completely", often describing the fading of intangible things like time, sound, light, or memories. The formation follows a common Chinese lexical pattern where two near-synonyms are paired to intensify and poeticize the concept, in this case, evoking a sense of something slowly dissipating into nothingness.