supplementari

Supplementari is an Italian adjective and noun meaning supplementary or additional. In Italian, it forms phrases such as materiali supplementari (additional materials), ore supplementari (extra hours), or parti supplementari (additional parts). As a noun, gli supplementari can refer to supplementary items or annexes that accompany a document.

The word derives from Latin supplementarius, from supplementum, meaning “a thing added.” The form entered Italian through Latin and early Romance language development, evolving to the common modern usage seen in contemporary texts.

In usage, supplementari appears across several domains. In law and contracts, one may encounter clausole supplementari or allegati supplementari describing additional provisions or appendices. In education and publishing, it designates extra materials or optional readings, for example materiali supplementari. In architecture or product design, supplementary components may be labeled parti supplementari. In English-language texts, supplementari is rarely used except as a loanword in discussions of Italian language or technical terminology.

Related terms include supplement and supplementary, while supplementarity is encountered in economics or linguistics to discuss the relationship between a base element and its addition. See also annex, appendix, add-on, and addenda for comparable concepts.