Anyone want to give it a go?
Dar lium is inscribhtha cach ni da cluinim & co hairghthi Ua Briain do tabhairt luach xx.it marg to timpan d’O Chundmhaigh & olcas a dil air. Aoine ria cingtigis anoacht agus a Cathair Meic Neachtain dam a fochair ceile na mbred.
[I think it is worth writing everything I hear and particularly O’Brien giving a tiompan/msall harp valued at twenty marks to O Chund[h]mhaigh, and little he deserves it. Tonight is Friday before Pentecost and (I am) at Cahermacnaughten in a company together (with) fellows of …?]