The word 明早 is formed by combining two independent characters, each contributing its core meaning to create a new, composite idea. The first character, 明 (míng), carries the inherent meaning of "bright" or "light", often associated with daylight. The second character, 早 (zǎo), means "early". When placed together, they create a direct, conceptual sequence: the "bright" (明) that follows the current day, combined with the "early" (早) part of that time, logically fuses to denote the specific time period of "tomorrow morning". It is a straightforward semantic compound where the sum of the literal parts points clearly to the intended meaning.