"A RECONSIDERATION OF SOME PLACE-NAMES FROM THE ANNALS OF CONNACHT Diarmuid Ó Murchadha Ainm Iml. VI 1994-5 Caisleán Leice Deirge 1247. …gur gabadur an crandocc 7 in loch 7 cur scailsed caslen Lece Dergi. (‘E. of the Shannon and prob in Muinter Eóluis.’) The lake in question (Claonloch, q.v.) is now Rinn L. in par. Cloone, bar. Mohill, Co. Leitrim. The castle of Leac Dhearg was prob. on the same site as the later Rinn Castle, on a peninsula in the lake. Claonloch 1247. Milid Mac Gosdelb do gabail Fedh Conmaicne 7 crannoc Claenlocha. (Not identified). Rinn Lough in par. Cloone, bar. Mohill, Co. Leitrim is named ‘Clain Lough’ on the DS par. map, and ‘L.Clain’ on Hib.Del. There are several small islands on the lake."

*** Carraic a Rinn, 'rock of the promontory' "anglicised here, *** Er-renga, Rock instead of Rinn." OD dúch:AL Carrickarinn "or Rinn Rock" scriosta OD:AL