Bre, a hill, as in Bryher, formerly called Brefar.
Carn, a pile of rocks, as in Carn Friars, Carn Near, etc.
Creeb or Creb, a crest, as in Crebawethan, the Creeb Rocks, etc.
Innis, an island, as in Peninnis, Innisidgen, Iniscaw.
Men or Min, a rock, as in Menawethen, Menavawr, Mincarlo, etc.
Pen, a head, as in Peninnis.
Porth or Per, a bay, as in Porth Cressa, Permellin, Perconger, etc.
Scaw, an alder, as in Tresco, Iniscaw.
Tre, a homestead, as in Tresco, Trenemen.
Vear, great, as in Rosevear, Holvear.