This was very interesting, John…thanks for posting. My dad was French Canadian so I’ll look to see if that side of our family has a dit name. Who knew?!
goes for places as well as people, and there are lots of them in Saint Barth...
from Wikipedia Lieu-dit (French pronunciation: [ljø.di]; plural: lieux-dits) (literally said-location) is a French toponymic term for a small geographical area bearing a traditional name. The name usually refers to some characteristic of the place, its former use, a past event, etc. A lieu-dit may be uninhabited, which distinguishes it from an hameau (hamlet), which is inhabited. In Burgundy, the term climat is used interchangeably with lieu-dit.