addendum
noun/əˈdendəm/
/əˈdendəm/
(plural addenda
(formal)/əˈdendə/
/əˈdendə/
)- a section of extra information that is added to something, especially to a bookTopics Literature and writingc2Word Originlate 17th cent.: Latin, ‘that which is to be added’, gerundive of addere, from ad- ‘to’ + the base of dare ‘put’.
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addendum