How did the word “medieval” originate and what does it mean in Latin? March 4, 2020 by Karen Hill The word “medieval” comes from two Latin words: medium and aevum. Respectively they mean “middle” and “age.” Related FactsWhy did men wear tights in Medieval Times and how did they originate?Where does the expression "Dog Latin" come from and What does Dog Latin mean?What Does the Word "Equestrian" Mean in Latin and How Did the Term For a Horseback Rider Originate?How did the word "larva" originate and What does larva mean in Latin?How did the word "legend" originate and What does legend mean in Latin?Where does the word "dismal" originate and What does dismal mean in Latin? About Karen Hill Karen Hill is a freelance writer, editor, and columnist. Born in New York, her work has appeared in the Examiner, Yahoo News, Buzzfeed, among others.