see Achren.
Octriallach, son of Indech, [110];
the “Cairn of Octriallach”, [110].
O’Curry, Eugene, [37], [56], [63], [72], [78], [89], [93], [111], [113], [137], [138], [146], [151], [152], [155], [188], [201], [204].
Odin, [260].
O’Donaghue, the, [247].
O’Donovan, [238].
Oeth and Anoeth, the Bone-prison of, [270], [271], [317], [373].
O’Flynn, Eochaid, an old Irish poet, [231].