Jeszra secondary languages are identifiable by receiving cross-language support. Examples are Lisp/Ltk, DocBook and elisp.
Jeszra secondary language support is the conventional way how programming language support starts in Jeszra. The Runtime Library, Gestalt Items- Tk libraries for example require cross-language support in those programming languages, before they can be utilized by Jeszra as premier languages.
DocBook and editor support is usually channeled through Jeszra's secondary language mechanism. The documentation is utilarian to the software creation; even though DocBook may become a Jeszra premier language–in order to merge Scalable Vector Graphics and DocBook. DocBook elements will then populate the various, not yet created, DocBook palettes and elements from design projects are directly injected into such a DocBook documentation project.
Editor support, like skeletons for Emacs, written in elisp remain Jeszra secondary languages. There is simply no possible use-case for premier language support.