Well, actually, your post made me feel like checking out http://www.dictionary.com, and it's spelled Elephantiasis.

From Dictionary.com
el·e·phan·ti·a·sis ( P ) Pronunciation Key (l-fn-t-ss)
n.
Chronic, often extreme enlargement and hardening of cutaneous and subcutaneous tissue, especially of the legs and external genitals, resulting from lymphatic obstruction and usually caused by infestation of the lymph glands and vessels with a filarial worm.