The compound word "逝去" is formed by combining two characters with related meanings to create a nuanced expression of departure and finality. The first character, 逝 (shì), carries the core meaning of "to pass away", "to elapse", or "to flow past", often used in contexts of time or life slipping away. The second character, 去 (qù), means "to go" or "to leave". When paired, "逝去" functions as a verb-object structure where "逝" describes the manner of leaving, a gentle, flowing, or irreversible passing, and "去" reinforces the action of departure. Together, they form a poetic and somewhat literary term that emphasizes a permanent, often melancholic, fading away, commonly used for the passage of time, the end of eras, or the loss of life.