Meanings
plural addenda · plural addendums
- A postscript.
- engineeringThe height by which the tooth of a gear projects beyond (outside for external, or inside for internal) the standard pitch circle or pitch line.
Synonyms & antonyms
nounSomething to be added; especially text added as an appendix or supplement to a document.
More synonyms by meaning
nountextual matter that is added onto a publication; usually at the end
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
- Proto-Indo-European*h₂éd
- Proto-Italic*ad
- Proto-Italic*ad-
- Latinad-
- Proto-Indo-European*dʰeh₁-
- Proto-Indo-European*dʰéh₁t
- Latinaddō
- Latinaddendum
- Englishaddendum
Learned borrowing from Latin addendum, inflection of addendus (“annexed”), future passive participle of addō (“to add”).
More words from Latin
Full word history & related roots →Translations
Bulgarian приба́вка, допълне́ние
- приба́вка (pribávka)something to be added
- допълне́ние (dopălnénie)something to be added
Catalan addenda
- addendasomething to be added
Chinese Cantonese 附錄 /附录
- 附錄 /附录 (fu⁶ luk⁶)something to be added
Chinese Mandarin 附件
- 附件 (fùjiàn)something to be added
Danish tillæg
- tillægsomething to be added
Dutch addendum
- addendumsomething to be added
Esperanto alaĵo
- alaĵosomething to be added
Finnish liite
- liitesomething to be added
French addendum
- addendumsomething to be added
German Anhang, Nachtrag
- Anhangsomething to be added
- Nachtragsomething to be added
Greek προσθήκη, προσάρτημα
- προσθήκη (prosthíki)something to be added
- προσάρτημα (prosártima)something to be added
Hungarian hozzáfűznivaló
- hozzáfűznivalósomething to be added
Indonesian adendum
- adendumsomething to be added
Irish aguisín, breis
- aguisínsomething to be added
- breissomething to be added
Korean 부록
- 부록 (burok)something to be added
Malay adendum, penambah
- adendumsomething to be added
- penambahsomething to be added
Māori kupu āpiti
- kupu āpitisomething to be added
Norwegian Bokmål tillegg, tilføyelse
- tilleggsomething to be added
- tilføyelsesomething to be added
Polish addendum
- addendumsomething to be added
Portuguese adendo
- adendosomething to be added
Russian дополне́ние, приба́вка
- дополне́ние (dopolnénije)something to be added
- приба́вка (pribávka)something to be added
Spanish adenda, addenda
- adendasomething to be added
- addendasomething to be added
Swedish tillägg
- tilläggsomething to be added
Cite this entry
addendum. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/addendum
“addendum.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/addendum. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “addendum,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/addendum.
Source: addendum on Wiktionary, CC BY-SA 4.0.