The word **臣服** is a compound verb formed by combining two semantically related characters: **臣** (chén), meaning "minister," "subject," or "vassal," and **服** (fú), meaning "to submit," "to obey," or "to be convinced." The term is not a literal addition but a metaphorical synthesis where "臣" evokes the image or role of a subordinate, and "服" provides the action of submission or compliance. Thus, **臣服** means "to submit to (someone's authority) as a subject would to a ruler," connoting a complete and often formal or willing surrender and allegiance. This formation exemplifies how classical Chinese concepts of hierarchy and duty are lexicalized into modern vocabulary.