The word "corneous" means relating to or resembling horn, and it can be used to describe a variety of things. For example, a tough, durable material may be described as corneous, or a plant with horn-like spikes on its leaves or stems. If you need to describe something that is even more corneous, there are several options. You could use synonyms like "hornier", "more calloused", "more horny", or "more keratinized". Another option might be to use more descriptive words, like "harder", "stiffer", or "more rigid", to convey the same meaning. Whatever word you choose, make sure it accurately conveys the intended meaning.