The word 'weaponry' is a relatively modern English formation, built upon the ancient root 'weapon'. The term 'weapon' itself has deep Germanic roots, tracing back to the Old English 'wǣpen', which broadly denoted an instrument of combat or the hunt. The suffix '-ry', borrowed via Old French from Latin '-arius', functions to create collective nouns. Thus, 'weaponry' logically evolved to signify not a single arm but the entire category, collection, or system of weapons, transforming a concrete object into an abstract collective concept.

Structure: weapon (instrument for fighting) + ry (collective suffix) - weapon: From Old English 'wǣpen', meaning an instrument for fighting or hunting. Its origin is Proto-Germanic. - ry: A noun-forming suffix, often indicating a collective, place, or condition. It comes from Old French '-erie', which has Latin origins.