When I saw her again after fifteen years, I was shocked by how corpulent she had become.
corpus corporis (body) (Latin)
corp (corpse = body) + plent (plenty) = plenty of body i.e. fat corpulent sounds like opulent which means rich and wealthy. Now, rich people are generally fat as they eat extremely well. cor+pulent: one who is capable of pulling a car i.e. a large fat man we can remember it by 'crop'. One who eats too much crop is very fat.