Focaloir gaoidhilge-sax-bhearla or An Irish-English dictionary : Whereof the Irish part hath been compiled not only from various Irish vocabularies, particularly that of Mr. Edward Lhuyd; but also from a great variety of the best Irish manuscripts now extant; especially those that have been composed from the 9th & 10th centuries, down to the 16th: besides those of the lives of St. Patrick & St. Brigit, written in the 6th & 7th centuries.