Daniel Breslauer…
Perhaps you (or others) know this already, but there actually is a reason that the word cat (chatul) and diaper (cheetul) are so similar.
We obviously know what a diaper (pamper) is designed to do, i.e. to absorb _ _ _ _. For those familiar with cats, you know that cats (unlike dogs, for example) go in a litter box, and outdoors, out in nature, they go somewhere where their waste will be absorbed and/or they cover it up with dirt. This similarity in the natural behavior of cats, and the purpose of a diaper, is the reason why a cheetul is called a cheetul (or at least so I was told by an Ivrit expert i know.)