It's not *quite* an appellation but it comes pretty close. Appellation is definitely used as a wine term, when a wine (or spirit) can only be made in a specific place, in a specific way, or by a specific group. "Champagne" or "Bordeaux" or "Chartreuse", for instance. "Elven" is a little loosey-goosey, but you could make a case for it.
If you're looking for someone using the word "appellation" to refer to something in comic, I always thought it a bit ironic that it should be V who's especially concerned about gender-appropriate appellations...
Still curious about Belkar's self-descriptions, then...