The word **就座** is formed through the grammatical process of **verb-object compounding**, where the verb **就** (jiù, meaning "to approach" or "to take up") is combined with its object **座** (zuò, meaning "seat"). Together, they create a single disyllabic verb meaning "to take one's seat" or "to be seated." This formation follows a common pattern in Modern Standard Chinese where two meaningful characters (morphemes) are joined to express a specific, often more formal, action—in this case, the act of moving toward and settling into a seat, typically used in formal or instructed contexts.