Patrick Weston Joyce

Lisdoonvarna in Clare; takes its name from a large fort on the right of the road as you go from Ballyvaghan to Ennistymon. The proper name of this is Dun-bhearnach [Doonvarna], gapped fort (see Barna), from its shape; and the word Lis was added, somewhat in the same manner as " river" in the expression " the river Liffey:" Lisdoonvarna, i. e. the lis (of) Doonvarna.