addendum
UK: əˈdɛndəm | US: əˈdɛndəm
n. an item of additional material added at the end of a book or document
n. something added or to be added
Derived from Latin addendum, neuter gerundive of addere ("to add"), composed of ad- ("to") + dare ("to give"). The gerundive suffix -endum implies necessity ("thing to be added"). The word entered English in the 17th century, retaining its original sense of supplementary material. The morpheme add preserves its core meaning of joining, while -endum marks it as a formal addition.
The contract included an addendum with updated terms.
Scholars published an addendum to correct errors in the original paper.
Check the addendum for supplemental charts and data.
The author wrote an addendum to address recent developments.
Always review addenda before signing legal documents.