502 



INDEX. 



O'Flannagan, Eochaidh, the Books of, at Ar- 

 magh, 106. 



Theophilus, translation by, 372. 



O'Flynn, Cu-Uladh, chief of Sil-Cathasaigh, 

 213. 



Ogham inscriptions, 80. 



Ogham inscription, fragment of, stated to be 

 discovered by Mr. Windele in the nave of 

 the ruined church of Ardmore, in the Coun- 

 ty of Waterford, 80, 81; comments on this 

 statement, 83, 84. 



character, inscriptions in, found on pil- 

 lar-stones, 133, 135. 



Ogma, of the race of Tuatha De Danann, 99, 

 101. 



a noble of the Tuatha DeDanans, buried 

 at Brugh, 105, 106. 



O'Gorman, Flann, or Florence, 28, 29. 



Ogum, on the end of the pillar-stone, at the 

 grave of Fothadh Airgtheach, interpreted, 

 108. 



O'Halloran, referred to, 202. 



O'Heruilbh, Niall, captives redeemed by [A. D. 

 963], 229- 



O'Hoisin, Aedh or Edan, Archbishop of Tuam, 

 cathedral church of Tuam rebuilt by, 269 ; 

 his name inscribed on stone cross at Tuam, 

 269, 311-313. 



Oifing, oroiffing, synonymous with screpall, 217. 



Oilen na mbrahar, or the Friar's Island, 423. 



Oilithre See Ailithre. 



Oirgialla, plundered Armagh in 99; 654, 55. 

 , king of, 391. 



acts performed and regulations made 



in, by Donnchadh O'Carroll, 391. 



Oirther, now Orior, 156. 



O'Kelly, Maeleachlainn, tomb of, 284. 



Olearius, referred to, 210. 



Ollam, of the race of the Tuatha De Dananns, 

 99, 101. 



Ollamh Fodhla, with his descendants, buried 

 at Taillten, 99, 101, 105, 106. 



Ollamh Saer, or chief builder, requisite quali- 

 fications of, 343, 344. 

 Ollarba, battle of, 107. 

 Ollave builder. See Ollamh Saer. 

 O'Lochlainn, Muirchertach See Muircher- 



tach O'Lochlainn. 



O'Loghlin, Conor, son of Feargal, 372, 373. 

 O'Malone, Giolla Christ, cloictheach, or Eound 



Tower, finished by, 389- 

 O'Melaghlin, Flann, cathedral of Clonmacnoise 



erected by, 389. 

 O'Molloy, Domhnall, son of Ruaidhri, lord of 



Feara Ceall, 243. 



Muirchertach, lord of Feara Ceall, 243. 



O'Muiridhe, Bishop Muircheartach, 265. 



O'Neill, Flahertach See Flahertach. 



O'Neill, of Magh da chon, 283, 284. 

 O'Nioc, Muirges, Abbot of Tuam, 312- 

 Opus reticulatum, masonry so called, 187. 

 O'Quinlan [O'Caindealbhain] the Comharba of 



Middle Meath, 30. 



Oraculum, a word applied to oratories in Ire- 

 land, how corrupted in Irish, 349. 

 Oran, in Magh Aoi, transactions of St. Patrick 



at, 164. 

 Oranmore, in the County of Gal way, doorway of 



church of, 180. 



Oratory, stone, at Bangor, 143. 

 of St. Cuthbert on the island of Fame, 



127, 128. 

 account of the building of a duirtheach 



of wood, 345. See Duirtheach. 

 Oratory, or dertheach of Maoliosa O'Brolchain, 



burned, 426. 

 Oratories, ancient, in the barony of Corkaguiny, 



in the County of Kerry, described, 131, 132. 



antiquity of, 132-135. 



^^-^ built on the continent by Irish saints, 



420. 



use of wood in, 140. 

 classified with other ecclesiastical 



buildings, 159- 



