Deir an Vicipéid gur leis an sloinne Béarla “MacEntee” a rugadh sí. B’fhéidir gurbh fhearr léi gan é a athrú beag beann ar na rialacha? Níl a fhios ‘am.
“Nic an tSaoi” is a usual Irish female surname. On the other hand, “Máire Mhac an tSaoi” doesn’t feel to be a real “name” at all, it’s rather like an explanation: “Máire of the Mac an tSaoi”, perhaps a reference to “the Mac an tSaoi“, her father (Seán Mac an tSaoi)?