ClimateJuly 14, 2026

addendum

/əˈdɛndəm/

Definition

An additional document or supplementary information attached to an existing report or submission to provide extra detail or context.

Etymology

Derived from the Latin word 'addendum', meaning 'that which must be added', which is the neuter gerundive of 'addere' (to add). It entered English in the 17th century to describe material added to a book or document.

In the news

In this article, the Z Energy addendum refers to a supplementary document released by the company to provide further information regarding risks associated with a landmark climate case.

Missing climate briefing note: Z Energy boss speaks out

Read the full article ↗

RNZ

Related words

Learn a word like this every day

Meet one new word every morning.

Newspoken pulls one carefully chosen word from the day’s news — with a clear definition, context, and light review that makes it stick. Get it on your phone.

Not for marketing. One email on launch day.