Killeens, as a place name, carries its own quiet significance. The word derives from the Irish "cillíní", a term used for small informal burial grounds, often associated with unbaptised infants or those excluded from consecrated ground. Whether the name here reflects such a use, or simply the presence of an early ecclesiastical enclosure, is the kind of question the site itself does not yet answer cleanly.

Church sites recorded across County Kilkenny frequently have roots in the early medieval period, when small monastic foundations and local parish churches were established across the Irish landscape, often on sites that had already held religious or communal significance for generations. These foundations sometimes left behind little more than a grassed-over footprint, a fragment of walling, or a scatter of worked stone, their histories compressed into the land. The church at Killeens sits within this broader pattern, a monument formally recognised in the archaeological record, though the specific details of its construction, its patrons, and its period of use remain, for now, undocumented in any publicly available form.