A variety of works have been associated with Cormac, such as the Sanas Cormaic, a glossary of difficult words in Irish in the style of Isidore of Seville, which bears his name. While the core of the document dates from around Cormac's time, and may in some way be linked to him, it is uncertain if he was the compiler of even the original list.
A range of literary works have been connected to Cormac, including the Sanas Cormaic, a dictionary of complex Irish words in the style of Isidore of Seville, which bears his name. Although the core material dates from around Cormac's time and may be related to him, it is unclear if he was responsible for compiling even the original list.