extra-large

The word is a modern English compound formed by combining the Latin prefix 'extra-' with the adjective 'large'. 'Extra-' derives from the Latin adverb and preposition meaning "on the outside, beyond," which itself originates from the Proto-Indo-European root eghs, meaning "out." The adjective 'large' entered English via Old French from the Latin largus, meaning "abundant, copious, generous." The compound 'extra-large' follows a logical and productive pattern in English, where the prefix 'extra-' is used to intensify or denote a degree beyond the standard, applied here to the concept of size. Thus, the term literally signifies "beyond large" or "exceeding the standard large size," a meaning directly retained in its modern commercial and descriptive usage.

Structure: extra (outside, beyond) + large (big) extra (Latin origin, meaning "outside of, beyond," functioning as an intensifying prefix); large (Old French origin, from Latin largus meaning "abundant, generous," functioning as the core adjective).