Anorexia is my choice here. I hope that answer didn't show up already. I'd hate to be copying someone else here. That would be a little annoying for him or her. But I just found this topic and it would take me hours to read over 4,500 responses so I'm just taking a chance here. If anyone did pick this already, I assure you that it was unintentional, for I only read the first post for directions and the previous one to guide me to a new (hopefully) word. I might just have to read everything though if things get really bad with my choices. Until then, I'll try to rely on luck.
PS
There are some words beginning with ia, just to let you know. They're rare, but do exist.