Dû, black.
Dwfr, or Dwr, water.
Dyffryn, a valley.
Eglwys, a church.
Ffordd, a way, a road, a passage.
Ffynnon, a well, a spring.
Gallt, (mutable into Allt) a cliff, an ascent, the side of a hill.
Garth, a hill bending round.
Glàn, a brink or shore.
Glâs, bluish, or grayish green.