I don't have the Origin in front of me right now, but I was thinking that the Origin's VS osc waveform list and opaque names are probably taken directly from the origin Prophet VS. So I did some googling and found this great page, http://www.ex5tech.com/ex5ubb_cgi/ultimatebb.cgi?ubb=get_topic&f=23&t=000004
where it becomes apparent that even in the original Prophet VS manual there were descriptions for only a small subset of the waveforms. Towards the bottom of this thread, John Bowen himself (!), the guy who created most of the original Prophet VS waveforms, chimes in and explains the reason for the lack of descriptions and the opaque names, in maybe more detail even than you wanted to know
In the second post in that thread, someone posted the full list of waveforms in the original Prophet VS, which I assume is the same in the Origin.
And here is a link to the original Prophet VS manual. On page 15-37 are the descriptions for some of the waveforms (the ones that in John Bowen's words, "describe the waveshapes when there was some logic to it"). Very useful!http://www.retrosynth.com/docs/pvs/pvs_user.pdf