placenamesTirerrill
Tír Oirill
Lewis recorded cascades and a rock bridge in Ballynakill parish.
The name
These Irish name elements are associated with this record in the Logainm glossary.
An element’s translation is a clue, rather than a complete explanation of the name. Its form and meaning depend on local history and the full Irish name.
Recorded forms
- Tír Oirill · Irish · main form · non-validated name
- Tirerrill · English · main form
Place & story
The Dubh-glass at Rockbrook
In 1837 Samuel Lewis described the Dubh-glass river forming several small cascades at Rockbrook in Ballynakill parish. It passed beneath a natural single-arched bridge, which he measured at six feet high with a twenty-foot span. His account places this feature within a limestone-rich farming parish on the Sligo–Ballyfarnon road. Nearby caverns and a holy well were recorded separately, without a claim that the natural arch had been built or used as a formal road crossing. [2]
Geographic information
Sources & further reading
- Logainm.ie — Tirerrill. Place names and geographic record, licensed under CC BY 4.0.
- Ballynakill, Sligo: A Topographical Dictionary of Ireland (1837) · Samuel Lewis
Name record retrieved 2026-10-25 · Source record modified 2026-09-19. How this page was prepared.