Eth. ERDINI in Ireland, mentioned by Ptolemy as occupants of the western side of Ireland next to the Venniani (Donegal), and north of the Nagnat (Connaught) == the parts about Loch Erne == Fermanagh. [R.G.L]
Dictionary of Greek and Roman Geography, illustrated by numerous engravings on wood. William Smith, LLD. London. Walton and Maberly, Upper Gower Street and Ivy Lane, Paternoster Row; John Murray, Albemarle Street. 1854.