The word 付清 (fùqīng) is a verb-object compound formed by combining the character 付, meaning "to pay" or "to hand over", with the character 清, meaning "clear", "settled", or "to clear up". Together, they create a semantic unit where 付 acts as the action and 清 acts as the result or goal of that action. Thus, the literal meaning is "to pay until clear", logically evolving into the modern meaning "to pay off (a debt) in full" or "to settle a payment completely". This formation follows a common pattern in Chinese where two characters with related meanings are combined to express a more specific, often result-oriented, action.