The Irish word "killeen" typically refers to a small unconsecrated burial ground, often used for unbaptised children or others excluded from formal Church burial, and the addition of "nimhe" suggests a connection to poison or venom, though whether that reflects a local legend, a plant association, or something stranger is not currently documented in any publicly available record. That combination alone, a marginal burial place and a word freighted with unease, is enough to make the name worth pausing over.

Beyond its evocative name, the specific history of this site remains, for the moment, effectively unwritten in accessible form. It appears on the register of recorded monuments for Mayo, which places it within a landscape that has been archaeologically significant since prehistory, but the details of its character, its extent, and any excavation or field survey work carried out there have not yet been made available through public channels. Mayo's interior townlands contain a remarkable density of early Christian and pre-Christian remains, from ring forts and souterrains to holy wells and killeens, and Cordarragh sits within that broader pattern of settlement and memory, even if Killeennimhe itself remains, for now, a name without a fully told story.