The word "永不" is formed through the direct combination of two independent characters, each carrying its own core meaning. The first character, "永", means "forever" or "permanently", conveying a sense of enduring time. It is placed before the second character, "不", which means "not" or "will not", expressing negation. Their fusion creates a new, unified concept where the sense of permanent duration modifies the negation, resulting in the compounded meaning of "never", an eternal not-happening. This formation is a logical semantic pairing, where the first element describes the temporal scope of the second.