I was recently poking around a cls file with a custom chapter formatting.

It uses \@chapapp{} and I would like to find out if there is a part equivalent other than \partname?

  • No, or at least no in the standard classes. The name for parts is constant. Commented Jul 11, 2015 at 23:38
  • \partname is what you're looking for. The existence of \@chapapp is due to the fact that \chaptername is used in the normal text, but \appendixname is used in the appendix.
    – egreg
    Commented Jul 11, 2015 at 23:38

1 Answer 1


The macro \@chapapp is initially defined to expand to \chaptername, but \appendix redefines it to be \appendixname.

The standard classes define \partname and the language definition files of babel should have a definition for it. Since there's no change in \partname during the document, no other command is provided.

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