RayThe heaviness and corpulency of water requiring a great force to divide it.
1907, Arthur_Conan_Doyle, Through the Magic Door, ch. 3,His person was large, robust, I may say approaching to the gigantic, and grown unwieldy from corpulency.
1912, Gilbert_Keith_Chesterton, "The Priest of Spring," in A Miscellany of Men,No man, however indulgent (as I am) to corpulency, ever worshipped a man as round as the sun or a woman as round as the moon.