However, you can use prefixes to create new words with related meanings:
* Unmessy: Means "not messy"
* Remess: Means "to make messy again"
While "mess" doesn't have a suffix, it can be used as a base word to create compound words:
* Messy: Means "characterized by mess"
* Mess-up: Means "a mistake or error"
* Mess-maker: Means "someone who makes messes"
Let me know if you have any other word puzzles!