The word Beneful can be broken down into two parts. The root of the word of the word, beneful, which originates from Latin, it means well, in the right way, honorably, and properly. The suffix of the word, has many different meanings some which include, full of, characterized by, and having the qualities of. If you combine the root beneful and the suffix you can get the definition having the qualities of doing things the right way. This definition can be applied to the dog food brand Beneful because they use top grade ingredients in their dog food.