It is, or may be, a bullaun stone, one of those deliberately hollowed or cup-marked boulders found at early medieval ecclesiastical sites across Ireland, often associated with cursing, healing, or the grinding of votive offerings. What makes this one quietly notable is that it went unrecorded until relatively recently, despite sitting in plain sight on a standing wall.

The stone came to attention in 2007, when Karen Buckley and Laurence Dunne carried out a graveyard survey at Kilconly. Their work identified it as a possible bullaun, noting its position on the north wall at the eastern end of the ruined church. The cautious phrasing matters: bullaun stones are sometimes difficult to distinguish from natural wear or damage to a stone's surface, and without closer examination the designation remains tentative. The church itself, recorded under the reference KE001-028, is the kind of early ecclesiastical site where such stones are not unexpected companions, often reused or repositioned over centuries as the surrounding structures were altered or fell into decay.