THE FIELD NOTES
Choose a kingdom, empire, republic or nation
The type of state sets the wording around the name. A kingdom might be the Kingdom of Valenmere or the Sylvara Crown. Empires become dominions and imperiums, and republics can turn into commonwealths or free cities. Pick Nation / realm for a fantasy country with no ruler implied, including plain names that work on a map by themselves.
Set the tone of your fantasy realm
Tone changes the sounds. Noble names use soft, stately parts such as Valen and Arden. Grim names lean on hard sounds such as Drak and Thar, which suit a harsh land or an old enemy. Mystic names use airy parts such as Sylv and Lum for places touched by magic. These are creative associations, not translations.
Fit the name into your world
Try a few names aloud before you commit, since characters will say this one often. A shortened form can become the name of its people or its language. You can also generate a rival state in a contrasting tone: a noble kingdom beside a grim empire makes the map feel like it has a history.
Invented realms, with clear limits
Every name is assembled from invented parts, and it does not come from any real state, game or book. A result may still match an existing name by chance, because no rights or availability check is performed. Human editorial review is pending.