The ringfort in the name
Rathconrath is one of thousands of Irish place-names that begin with Ráth — the early-medieval ringfort, a circular bank-and-ditch enclosure that was the standard farmstead in Ireland from roughly the 6th to the 11th century. The second element, Conrach, is a personal name; the place is the rath of a man called Conrach. Whoever he was, the earthwork named for him gave its name to the parish that grew up around it. The fort itself is one of perhaps thirty thousand similar sites still readable in the Irish landscape, most of them on private farmland and most of them unmarked except by the bumps in a field and the name on the map.