formal

The word "formal" traces its lineage to the Latin formalis, an adjective derived from forma, meaning "shape, mold, or pattern." The core concept of forma itself is of uncertain origin, though it may be linked to the Greek morphē (form). The semantic journey moved from the concrete idea of a physical shape or mold to the abstract notion of an established pattern or prescribed way of doing things. Consequently, "formal" evolved to describe anything pertaining to the established form, structure, or ceremony, as opposed to the informal substance or content. This logic explains its modern meanings, ranging from adherence to official procedure to a manner that is stiffly correct in outward appearance.

Structure: form (shape) + al (adjective suffix) - form: From Latin forma (shape, mold, pattern, beauty). Serves as the core root conveying the concept of shape, structure, or prescribed arrangement. - al: A suffix of Latin origin (-alis), used to form adjectives meaning "of, relating to, or characterized by" the root noun.