addendum
n.a short document that adds extra information to a longer one. You use it when you need to include something new without changing the original text.
n.a supplementary document or section that provides additional information to a primary text. Often used in legal, academic, or technical contexts to clarify or expand upon existing content.
“The addendum explains the new safety rules.”
“The contract includes an addendum that outlines the specific terms of the insurance coverage.”
“The final report was accompanied by a detailed addendum addressing the concerns raised by the technical committee regarding the initial data collection methods.”
From the gerundive of Latin addere (“to add”).
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.