Craig, a rock: from this the English word Crag is derived.
Cwm, a great hollow or glen; sometimes a valley.
Dinas, a fort, or fortified place, constructed in general with a rampart of loose stones and earth without any cement.
Dôl, a meadow or dale in the bend of a river.
Drws, a door, pass, or opening.
Dû, black.
Dyffryn, a wide cultivated valley.
Ffynnon, a spring, well, or source.
Garth, a mountain that bends round, or that incloses.
Glan, a bank or shore.