Rath More, meaning "great fort" in Irish, signals that whatever once occupied this site in County Clare was considered significant enough to earn a superlative. The monument is classified as an enclosure, a broad term used when the precise function or period of a roughly circular or oval earthwork cannot be pinned down with certainty. These enclosures are scattered across the Irish landscape in their thousands, remnants of a period when defining and defending space, whether for settlement, agriculture, or ritual, was a fundamental part of daily life.

Raths, sometimes called ring-forts, were typically constructed during the early medieval period, roughly between the fifth and twelfth centuries, and served as enclosed farmsteads for a family or small community. A bank of earth, sometimes accompanied by a fosse or ditch, formed the boundary, and timber structures or dry-stone buildings would have stood within. The designation "Rath More" suggests this particular example was notable in scale or prominence compared to others nearby, large enough that local memory preserved the distinction in the placename itself. Clare is particularly well-furnished with such earthworks, the county's limestone landscape having offered both the raw material for construction and, in many cases, the means of preservation.