"Caher" derives from the Irish "cathair", referring to a stone fort or enclosure, and the fact that the townland bears this name at all suggests the presence of something old and substantial enough to define the place for generations. The enclosure recorded here belongs to a category of monument found across Clare and the wider west of Ireland, where early medieval or prehistoric communities built circular or roughly circular boundaries from stone or earthen banks, sometimes for settlement, sometimes for the enclosure of livestock, and sometimes for purposes that remain genuinely unclear.