Dol, a meadow or dale in the bend of the river.
Drws, a doorway, a pass.
Dû, black.
Dwfr or Dwr, water.
Dyffryn, a valley.
Eglwys, a church.
Ffordd, away, a road a passage.
Ffynnon, a well, a spring.
Garth, a hill bending round.
Glàn, a brink or shore.