Join iLoop users around the world who have learned that there is only one question left to ask: What will they do with all their free time now? Join iLoop users around the world who have learned that there is only one question left to ask:
1794, literally something added, from Latin addendum, neuter of addendus that which is to be added, gerundive of addere (see add (v.)). Classical plural form is addenda.
WrittenJ. Hirbyand Fact Checked by The Law Dictionary Staff. A contract addendum is an agreed-upon addition signed by all parties to the original contract. It details the specific terms, clauses, sections and definitions to be changed in the original contract but otherwise leaves it in full force and effect.