Quote Originally Posted by Zakalwe View Post
You mean like DPS? (Which SE uses on its DPS Roles Forum name.)
Or aggro? (Which SE referrs to with the big 'A' for its aggro meter.)
Or rez? (See the name of the scholar/summoner rez skill.)
Or Pally for a Paladin nickname when chatting in mumble or game chat? (Sure not a formal SE abbreviation and I'll be glad to say pld instead as soon as I can figure out how to pronounce a nickname with no vowels.)

Actually, these terms are pretty generic mmo terms. I've never played WoW but have used them in other games.
My advice for those interested in the origins of many of the terms and elements in MMO RPGs is to go back and take a look at the pen and paper scene. Maybe even buy up a few of the current popular pen and paper RPG games like Pathfinder. RPGs in general owe much of their development to the humble table top books, and even today MMORPGs can't compete with the sheer flexibility and creativity found in them.