Whatever it can be that Tera Gold latest class is really called, this doesn't happen translate well to English. Fans of the sport have largely been calling the category the "Moonlight Warrior," whereas a state website with the Korean version calls it the "Glaiver."
It appears as if En Masse Entertainment was originally gonna call the category the "Paragon," however the company announced yesterday who's would rather have players choose between one of five names they thought work best. The five names Tera Items are Glaivedancer, Moondancer, Paragon, Sentinel, and Valkyrie. Personally, I don't think it's anything as being a Valkyrie, but maybe that's just me.
You can cast your votes within the official forums. If you're lucky, maybe the name you prefer will become the state run name on the class.