The "fort" element is common enough across Irish placenames, often pointing to a ringfort or enclosed settlement, the kind of roughly circular earthwork that farmers and early medieval communities built across Ireland in their thousands between roughly the fifth and twelfth centuries. What sits at Frenchfort is recorded as an enclosure, a broad archaeological category that can cover anything from a defended homestead to a ritual or agricultural boundary, the precise character of this one remaining, for now, a matter of some uncertainty.