Common Suffixes:
* -ism: A system, doctrine, or practice. (e.g., marsupialism - a hypothetical system based on marsupials).
* -ist: A person who specializes in or is an advocate of something. (e.g., marsupialist - a zoologist who studies marsupials).
* -ology: The study of. (e.g., marsupialology - the branch of zoology that studies marsupials).
* -ian: Relating to or characteristic of. (e.g., marsupialian - an animal that is a marsupial).
* -like: Resembling or having the qualities of. (e.g., marsupial-like - describing something that shares traits with a marsupial).
Less Common but Possible Suffixes:
* -hood: A state or condition. (e.g., marsupialhood - the state of being a marsupial).
* -ness: A quality or characteristic. (e.g., marsupialness - the quality of being a marsupial).
* -ation: The process of. (e.g., marsupialization - a hypothetical process involving marsupials).
Important Note: Many of these suffixes are not in common use and would likely sound unusual or made-up. You can use them creatively, but it's important to consider the context and audience when using these less common words.