The word itself, borrowed into Irish from Latin, refers to a low cairn or commemorative heap of stones, typically associated with a holy person, a place of pilgrimage, or a spot where prayers were traditionally offered. Leachta are among the quieter presences in the Irish landscape, easy to walk past without recognition, yet often carrying centuries of devotional use within their unassuming profiles.

Leitir Deiscirt, which translates roughly as the southern letter or southern slope, sits within the Lettermore area of south Connemara, a landscape of fractured rock, narrow inlets, and low ground that has been continuously inhabited since prehistoric times. The broader region is thick with archaeological remains, and a leacht of this kind would fit into a long tradition of localised sacred geography, where particular stones or cairns marked points of memory, loss, or veneration. Without more specific detail about this individual monument, its precise age and the traditions attached to it remain difficult to pin down, though leachta as a class of monument span from early medieval Christianity through to patterns of folk devotion that persisted well into the modern era.