The word 经验 is formed by combining two characters, each contributing a core idea. 经 (jīng) carries the original meaning of "to pass through" or "to undergo", implying a longitudinal process or a thread of continuity over time. 验 (yàn) means "to examine", "to test", or "to verify", highlighting the element of proof and observed reality. Together, they conceptually merge the notion of "having gone through something" with the notion of "having tested and verified it", forming the integrated idea of "experience", knowledge and skill gained not from theory alone, but from direct, practical engagement and reflection over time.