World Building: Establishing the foundations

You need a dictionary for each culture remembering that their geographic markers describe what they have seen, so once you analyze these name pools, and dictionaries, you will get geographic origins specific to the ancestors of particular groups, entomology,  Shared linguistic origins, and soforth.

If your culture originates at a geographic marker that is no where near its current location, its likely that they migrated. They might not even have a word for that geography implying no longterm records.

Imagine a tribe you have inserted down on a hill in the middle of a continent originating linguistically similar to sailing boats. That might mean they abandoned a coastal location. Either recently or because its now under water.

Once you have all your data, you can pretty much map the related groups, and migration paths, note down historic interactions, shared caves, technological growth.

You can then plunk them on a map.