Dun, a root common to the Celtic and Teutonic languages, signifying a hill or height. Besides giving rise to the Fr. dunes, Ger. dünen, Eng. downs, it enters extensively into the names of places (becoming often dum, don), as Dunkirk, Dunbarton, Donegal. It is allied to the A.S. tun, ton, whence town. And see HILL-FORTS.
Dun
Chambers's Encyclopaedia, Volume 4: Dionysius to Friction, p. 118
Source scan(s): p. 0127