This is a compendium of Old-Irish grammar with translation exercises. It is a companion volume to 'Old Irish Paradigms' and 'Selections from the Old-Irish Glosses'. First published in 1974, it provides a series of lessons and exercises designed to introduce students to the foundational rules of medieval Irish grammar. It is a core university text for students of Old Irish.

First projected by the Irish Archaeological Society in 1852, work on the Dictionary of the Irish Language was initiated by the foremost Irish scholars of the time, John O'Donovan and Eugene O'Curry. Unfortunately, both were dead by 1862, but before his death O'Donovan had outlined how the dictionary should be based on a thorough excerpting of older Irish manuscripts. The meanings of words were to be supported by citations. Etymology was not to be attempted apart from derivation within Irish itself and the giving of sources of loan words. These directions have been adhered to in the work as...