| Ó Raghailligh | O'Reilly: an-líonmhar tríd an dtír: in Ulaidh & Laighin thuaidh go sonrach. Ceann de mhór-chlanna na nGael a d'áitigh Breifne (Cabhán-Liatroim). Bhíodar páirteach in éirí amach 1641 agus cogadh an Dá Rí ach choimeád siad roinnt mhaith talún síos tríd na blianta. D'fhoillsigh Edward O'Reilly foclóir Gaeilge-Béarla i 1817. An bhrí - níl ann ach tuairim - cróga. |
| O'Reilly | Very numerous: all areas, especially Ulster and N Leinster. Ir. Ó Raghallaigh. One of the leading septs of Breifne (Cavan). Synonyms: Reilly, Riley. IF. |
| Reilly | Very numerous: all areas, especially N Leinster and S Ulster. Ir. Ó Raghallaigh. A leading sept of Breifne located in Cavan. See also O'Reilly. IF. |
| Riley | Quite numerous: E Ulster, Dublin-Wicklow. Variant of Reilly, q.v. |
DEDs where O'Reilley and a second surname are found together
This list shows total 1901 O'Reilley households by county.
Click on the county to see detail.
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