Holy wells are among the most quietly persistent features of the Irish countryside, places where pre-Christian reverence for water sources blended gradually into Christian practice, acquiring patron saints, pattern days, and the habit of leaving votive offerings. They survive in their thousands across Ireland, ranging from elaborate stone-lined basins with ornamental surrounds to little more than a seeping hollow in a field, and the one at Kiltrassy belongs to that long tradition.

The townland name itself offers a small clue. Kiltrassy likely derives from the Irish, with the element "cill" pointing to an early ecclesiastical site, a cell or church associated with a saint whose identity has not been firmly preserved in the accessible record. That pairing of a holy well with an early church site is typical: wells were frequently located close to early medieval religious foundations, and the two features together often mark a place of considerable age, used for ritual purposes long before any written record captured them. Without more detailed documentation currently to hand, the specific history of this particular well, its patron, any associated feast day, and the local customs once observed there, remains to be fully traced.