The Chinese word 发臭 is a verb-object compound formed by combining the verb 发 (fā), which here means "to emit" or "to develop," with the noun 臭 (chòu), meaning "a foul smell." The construction follows a common grammatical pattern where 发 acts as a verbal prefix indicating the onset or manifestation of a state, and 臭 serves as the resultant condition. Thus, 发臭 literally means "to emit a stench" or "to become smelly," describing the process of something starting to rot or decay.