Brain Family History
Brain Surname Meaning
English: apparently a nickname from Middle English brain ‘brain mind’ probably short for brainwod ‘mad in the mind furious’. Compare Brainard.
Irish (Down) and Scottish: shortened Anglicized form of Irish Mac an Bhreitheamhan Scottish Gaelic Mac a' Bhreitheamhan ‘son of the judge’ from breitheamh ‘judge’.
Compare Braham.
Source: Dictionary of American Family Names 2nd edition, 2022
