THE EARLY OLD IRISH MATERIAL IN THE NEWLY DISCOVERED <i>COMPUTUS EINSIDLENSIS</i> (<i>C</i>. AD 700)

The Computus Einsidlensis (Einsiedeln, Stiftsbibliothek, 321 (647), pp 82-125) is a recently discovered text in the Swiss monastery of Einsiedeln. Besides its importance for the study of computistics in the early Middle Ages in general, and of seventhand eighth-century Irish monastic learning in particular, the fact that this Latin text incorporates a considerable number of Old Irish terms makes it especially important for the study of this language. A dating of this text to the period AD 689-719 is provided, together with an analysis of all its Old Irish material from this period of transition from Early to Classical Old Irish.