Ogham is an early medieval alphabet in which letters are represented by clusters of lines or notches cut along a central stem, most commonly the edge of a standing stone, and this example carries its text on the dexter side of one of its narrow edges.

The stone came originally from Ballyknock North in County Cork, where it had been built into a souterrain, an underground stone-lined passage or chamber typically associated with a nearby ringfort. Both structures survive at the site. The concentration of fifteen ogham stones within a single souterrain is remarkable; such stones were often reused as building material long after their original commemorative purpose had been forgotten, but finding so many together in one place is extraordinary. Reading the inscription has not been straightforward. R. A. S. Macalister, who catalogued Irish ogham stones in 1945, interpreted the text as DOMMO MACI VEDUCERI, with a note that the first word might instead be DEGO. A later reading by Damian McManus, published in 2004, was more cautious, rendering it as D[ ]MM[ ]MACi [ ]eRI, with gaps indicating letters too worn or ambiguous to resolve with confidence. The formula, whatever the exact reading, follows the standard ogham pattern of naming a person as the son of another, a convention used across hundreds of such stones in Ireland and western Britain.

The Stone Corridor at UCC holds one of the largest collections of ogham stones on display anywhere, and this stone from Ballyknock North sits among others with similarly contested or fragmentary inscriptions, each one a small legible remnant of an early medieval naming culture that has otherwise left almost no written trace.