Corpulence is a word for excessive weight. The Latin word "corpus" means "body," and corpulence is when someone has a lot of body, in other words, they’re fat.
The word corpulence is old-fashioned, but it refers to something all too modern — the quality of being very overweight. This is much more than being a little overweight. One of Santa Claus' main features is his corpulence. Unfortunately, corpulence is a quality that many people have, and it poses many health risks.