VMS Help MACRO, VAX MACRO Assembler, Directives, .ENDM  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Terminates the MACRO definition.

      .ENDM [macro-name]

    macro-name

    The name of the macro whose definition  is  to  be  terminated.
    The macro  name is optional; if specified, it must match the name
    defined in the matching .MACRO directive.  The macro name should be
    specified so  that  the  assembler  can  detect  any  improperly
    nested  macro definitions.