Ben

Ben, or BEINN, the Gaelic and Irish form (Welsh Pen) of a Celtic word signifying 'mountain' or 'mountain head.' It occurs, usually as a prefix, in the names of a great many mountains and places within the British Isles, as Ben Nevis, Ben Macdhuì, The Twelve Pins, Pennigant, Penzance; and it appears in many continental names, as the Pennine Alps, the Apennines, and Pindus.