Word of the Day: Valetudinarian

Valetudinarian \val-i-tood-n-AIR-ee-uhn\ noun
1. A weak or sickly person, especially one who is constantly or overly worried about his or her health.  A valetudinarian is in much worse shape than a mere hypochondriac. 
Origin:  Valetudinarian is from Latin valetudo 'state of health', from valere "to be well".