Racavan; Rath-cabhain, the fort of the hollow.
Rahan in King’s County; Raithin, a ferny place.
Rahaniska, Rahanisky; the rath of the water.
Rahard; Rath-ard, high fort.
Raharney in Westmeath; Rath-Athairne, Aharny’a fort.
Raheen; little rath or fort.
Raheenduff; black little fort.
Raheenroe; Raitín-ruadh, red little fort.
Rahelty; Rath-eilte, the fort of the doe (eilit).
Raheny near Dublin; Rath-Enna, F.M., Enna’s fort.
Rahugh in Westmeath; the fort of St. Aedh or Hugh, the son of Brec, who built a church in the old rath in the sixth century.
Raigh; same as Rath, a fort.
Rakeeragh; the fort of the sheep (caera).
Ramoan in Antrim; Rath-Modhain, Modan’s fort.
Ranaghan, Rannagh; a ferny place (raithne, a fern).
Raphoe in Donegal; Rath-bhoth [Ra-voh], F.M., the fort of the boths, tents, or huts.
Rasharkin in Antrim; Ros-Earcáin, Erkan’s promontory.
Rashee in Antrim; Rath-sithe [Ra-shee], F.M., the fort of the fairies.
Ratass in Kerry; Rath-teas, southern fort.
Rath; a circular fort.
Rathangan in Kildare; Rath-Iomghain [Ruth-Imgan], Imgan’s fort.
Rathanny; Rath-eanaighe, the fort of the marsh.
Rathaspick; the fort of the bishop (easpug).
Rathbane, Rathbaun; white rath.
Rathbeg; little fort.
Rathborney in Clare; Rath-boirne, the fort of Burren, from its situation in the old district of Burren.
Rathcormack; Cormac’s fort.
Rathdowney in Queen’s County; Rath-tamhnaigh [Rath-towney], F.M., the fort of the green field (tamhnach).
Rathdrum; the fort of the long hill.
Rathduff; black fort.
Rathfeigh in Meath; the fort of the exercise green. See Faha.
Rathfryland in Down; Rath-Fraeileann, Freelan’s fort.
Rathglass; green fort.
Rathkeale; Rath-Gaela, Gaela’s fort.
Rathkenny; Rath-Cheannaigh [Kanny], Ceannach’s fort.
Rathkieran in Kilkenny; Kieran’s fort; from St. Kieran of Ossory. See Seirkieran.
Rathrnore; great fort.
Rathmoyle; bald or dilapidated fort.
Rathmullan; Rath-Maelain, F.M., Maelan‘s rath.
Rathnew in Wicklow; Rath-Naoi, F.M., Naoi’s fort.
Rathreagh; Rath-riabhach, grey fort.
Rathroe; red fort.
Rathronan; Ronan’s fort.
Rathsallagh; Rath-salach, dirty fort.
Rathvilly in Carlow; Rath-bilě, F.M., the fort of the old tree.
Rattoo; Rath-tuaidh [too], northern fort.
Raw; Rath, a fort.
Rea; Reidh, a coarse mountain flat.
Reask, Reisk; Riasg [Reesk], a marsh.
Reen; Rinn, a point of land.
Relagh; Reidhleach [Relagh], same meaning as Rea.
Relickmurry; Reilig, a church: time church of the Blessed Virgin Mary.
Riesk; a marsh; same as Reask.
Rin, Rine, Rinn; Rinn, a point of hand.
Ring; another form of Rin.
Ringabella near the mouth of Cork harbour; the point of time old tree (bilě).
Ringagonagh near Dungarvan; Rinn-O’gCuana [Ogoo­na],the point or peninsula of the O’Cooneys.
Ringbane, Ringbaun; white point.
Rungcurran near Kinsale; the point of the corrán or reaping hook; from its shape.
Ringrone near Kinsale; written in the Annals of Innis­fallen, Rinn-róin, the point of the seal.
Ringvilla, Ringville; Binn-bhile [villa], the point of the bilě or ancient tree.
Rinneen; little point of land.
Rinville in Galway; Rinn-Mhil [vil], the point of Mil, a Firbolg chieftain.
Risk; same as Reask.
Roeillaun; Ruadh-oilean [Roo-illaun], red island.
Rooaun, Rooghan, Rooghaun; reddish land (from ruadh, red).
Roosk; Rusg, a marsh. See Reask.
Roosca, Rooskagh, Roosky; Rusgach, marshy, a marshy place.
Roscommon; Ros-Comain, F.M., Coman’s wood, from St. Coman, who founded a monastery there in the eighth century.
Roscrea; written in the Book of Leinster, Ros-cre, Cre’s wood.
Roshin; little ros or promontory.
Roskeen; Ros-caein, beautiful wood.
Ross; in the south generally means a wood; in the north, a peninsula.
Rossbegh or Rossbehy west of Killarney; the peninsula of birches (beith).
Rossbeg; small wood or promontory.
Ross Carbery in Cork; the latter part from the barony of Carbery in which it is situated: it was anciently called Ros-ailithir [allihir], F.M., the wood of the pilgrims.
Ross Castle at Killarney; from the little ros or peninsula on which it stands.
Rosses in Donegal; i.e. peninsulas.
Rossinver in Leitrim; Ros-inbhir, the peninsula of the river mouth; from a point of land running into the south part of Lough Melvin.
Rossmore; great wood or peninsula.
Rossorry near Enniskillen; corrupted from Ros-airthir [arher), F.M., the eastern peninsula.
Roughan, Ruan; same as Rooaun.
Rousky; same as Roosca and Rooskey.
Route. The northern part of Antrim was anciently called Dalriada (F.M.), i.e. Riada’s portion or tribe, from Carbery Riada, son of Conary II. (see Corkaguiny); and the latter part (Riada) of this old name, is still preserved in the corrupted form of Route.
Rush in Dublin; Ros-eo [Rush-ō], F.M., the peninsula of the yew trees.
Rusheen; small wood; a growth of underwood.
Russagh; Ros-each, F.M., the wood of the horses.
Rusky; the same as Roosca and Roosky.