The term 'Person of Great and Varied Learning' can be summarized as a POLYMATH, which is an 8-letter word. A POLYMATH is an individual who is knowledgeable in many different areas of study, such as the sciences, humanities, and arts. They are often considered to be experts in multiple fields, and have a wide range of knowledge and skills. Polymaths have been around since ancient times, with some of the most famous examples being Leonardo da Vinci, Aristotle, and Galileo Galilei.