Mcdevitt Family History
Mcdevitt Surname Meaning
Irish: Anglicized form of Gaelic Mac Daibhéid a patronymic from the Gaelic equivalent of David.
Lenition of the personal name as Mac Dhaibhéid gave rise to McKevitt while a short form of the personal name is Anglicized as McDade.
Source: Dictionary of American Family Names 2nd edition, 2022