Norman toponymy is a big word that means the study of place names in the Normandy region of France. It's like trying to figure out why a town or city is called what it is.
For example, let's say there's a town called Caen in Normandy. It's important to figure out why it's called Caen and not something else. Maybe it's named after a person, like a king or queen, or maybe it's named after a certain trait of the town, like a river or a forest.
In order to study Norman toponymy, people have to look at the history of Normandy and the people who used to live there. They also have to learn about the language that was spoken there and how it has changed over time.
This helps us understand more about the origins of the place names in Normandy and how they have evolved over time. It's like trying to solve a big puzzle and piece together the history of the region.