The word **郑重** (zhèngzhòng) is a classical Chinese binome (联绵词) formed through the combination of two semantically similar characters: **郑** (zhèng), which originally referred to the ancient state of Zheng but in this context carries a derived sense of solemnity and formality, and **重** (zhòng), meaning "heavy," "serious," or "important." Together, they create a single, inseparable disyllabic unit where the combined meaning intensifies the notion of earnestness, solemnity, and careful formality, effectively describing a manner or attitude that is both serious and deeply respectful.