addendum

Meanings

1. 1
   noun

   a section of additional information appended to a document or publication

   The editor added an addendum explaining the figures that had changed after publication.

2. 2
   noun

   an additional provision attached to an agreement or other formal record

   Both parties signed an addendum extending the contract for another year.

From Latin addendum ("that which is to be added"), the neuter gerundive of addere ("to add"), from ad- ("to") + dare ("to give, put"). The traditional Latin plural is addenda, though addendums also occurs.

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