The name itself carries a quiet weight common to rural Ireland, where the phrase "old house" often marks a place that has slipped from habitation into memory, retaining just enough presence to keep its name on maps and in local speech.

The placename Caherroyn, like the nearby Cahertoyn, likely derives from the Irish "cathair", meaning a stone fort or enclosed settlement, a type of dry-stone ringfort once widespread across Connacht. This linguistic echo suggests a landscape with deep roots in early medieval settlement, where later structures were often built within or beside older enclosures, borrowing their stone and their ground. Without further detail, the Old House sits in that familiar Irish category of places where a building has outlasted its story, leaving only its walls and its name as evidence that people once made a life there.