Holy wells, known in Irish as toibreacha beannaithe, occupy a distinctive place in the country's devotional geography. They were, and in many cases still are, sites of pattern days, pilgrimage, and the tying of votive offerings to nearby bushes or trees, practices that blended early Christian observance with far older ritual traditions surrounding water and healing. The name Tobernara itself likely derives from the Irish tobar, meaning well, with the second element possibly indicating a dedication or a personal name, though the precise etymology here remains uncertain.

Wells of this kind were typically associated with a local saint or with specific curative properties, and communities would gather at them on the saint's feast day or at particular points in the agricultural calendar. Some were credited with healing eye complaints, others with cures for ailments of the skin or joints. The physical form of a holy well varies considerably across Ireland, from simple natural springs marked with a stone or timber surround to more elaborate enclosures with carved stonework or a small corbelled stone shelter. Whether Tobernara retains any such structural features is not currently documented in publicly available sources, which makes it one of those sites that exists more fully in local memory than in the formal archaeological record.