"Enfeeble - Periodically Enfeebles 5 people, excluding the tank chosen at random, which reduces their max hit points to 1, and healing effects and health regen to 0% for about 7 seconds. Do not try to heal these people as it will do nothing. Enfeebled people must stay 30+ yards away from Malchezaar and watch out for Infernals. After the Enfeeble is up, players return to their previous health."
-Taken from Prince Malchezaar's page on wowwiki
This made me chuckle a bit and think of enfeebleness :P