Mac An tSaoi
Mac an tSAOI—VII—M'Attye, M'Entie, M'Inty, MacAtee, MacEntee, MacIntee, MacKenty, MacKinty; 'son of the scholar' (Irish 'saoi'); a well-known North of Ireland surname. In the 16th century, it was most common in Donegal, Monaghan, Louth and Longford.
Alphabetical Index to Irish Surnames