Corrigendum vs. Addendum

Corrigendumnoun

An error that is to be corrected in a printed work after publication.

Corrigendumnoun

A list of errors in a printed work as a separate page of corrections.

Corrigendumnoun

A fault or error to be corrected.

Corrigendumnoun

A correction of an error, especially in a printed document.

Corrigendumnoun

a printer's error; to be corrected

Addendumnoun

Something to be added; especially text added as an appendix or supplement to a document.

Addendumnoun

A postscript.

Addendumnoun

(engineering) The height by which the tooth of a gear projects beyond (outside for external, or inside for internal) the standard pitch circle or pitch line.

Addendumnoun

A thing to be added; an appendix or addition.

Addendumnoun

textual matter that is added onto a publication; usually at the end

Addendumnoun

an item of additional material added at the end of a book or other publication.

Addendumnoun

the radial distance from the pitch circle of a cogwheel or wormwheel to the crests of the teeth or ridges.

Addendum

An addendum or appendix, in general, is an addition required to be made to a document by its author subsequent to its printing or publication. It comes from the Latin gerundive addendum, plural addenda, from addere (lit. ''give toward'', compare with memorandum, agenda, corrigenda).