I have appended something to the end of something else, but I don't know the word to describe the what has been appended. Even after it is one big "something", I was wondering if there was a word that described the piece that was not always there before.

"Append" is the verb I am looking to convert. "Appension" and "appendee" are not real words as far as I know.

Edit: I have not considered "appendix" since it seems to imply being at the end specifically, rather than something that was added (anywhere) to something else.

@V0ight suggested affix, which seems by its definition to be much closer to what I had in mind!

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    But appendix is a real word, and it should be right there by append in the dictionary. What's wrong with that? – FumbleFingers Jul 8 '16 at 23:53
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    Would appendix work in the context of taking a file and appending another piece of something to it (possibly before) and referring to it as an appendix? Appendix seems to mean just at the end, usually for a book, whereas it seems the definition of "append" means to add to something, but doesn't specify at the end. Do I have the wrong definition of append? – Ryan Jul 8 '16 at 23:57
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    The two words that come to mind are: "appendix" and "appendage." If you have an appendix and you append something to it, that something is an appendage, but an appendage needn't only be appended to an appendix. – Benjamin Harman Jul 8 '16 at 23:58
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    @PierceDarragh: "appendee" sounds silly. Also, I think "-ee" tends to be used to refer to humans rather than inanimate objects. – sumelic Jul 9 '16 at 0:02
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    Also try supplement or supplemental material or supplementary material or maybe attachment – user180089 Jul 9 '16 at 0:10

After reading through all the comments I'd like to propose addendum. Although mainly associated with publications it also serves in other area's.

something that is added; especially : a section of a book that is added to the main or original text


I suggest the following alternatives:

Appendage: a subordinate part attached to something; an auxiliary part; addition

[Edit: just realized that appendage is already suggested by Benjamin Harman in a comment]

Adjunct: something added to another thing but not essential to it


What's wrong with "attachment?" Mathematica uses "prepend" (which actually means to mull over) to mean "attach at the beginning" and "append"(which actually means to attach anywhere) to mean "attach at the end." But this is just jargon. You can append a pearl to a necklace right in the middle.

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