Reuse comes from re- ('again') + use, the verb use from Old French user, from Vulgar Latin *usare, frequentative of Latin uti ('to use, employ'). The historical chain includes Latin uti. Older glosses in the chain include "again" and "to use, employ", which help explain the semantic range of the modern word. Morphologically, reuse is best read as compound and borrowing, yielding an English verb and noun shaped by both form history and later usage. In current English it functions as a verb and noun, with the sense "to use again; the act of using something more than once". English derivatives include reusable and reusability; related forms include use, usage, usable, and reusable. The result is an English verb and noun whose etymology preserves the older forms while supporting the word's specialized modern meaning.