Brash Family History
Brash Name Meaning
Scottish: probably a nickname for an impetuous person from northern English dialect brasche ‘rash impetuous’ (associated with brasche ‘assault attack’ a word of imitative origin). Americanized form of German Braasch or Brasch . Americanized form of Polish Braś (see Bras ).
Source: Dictionary of American Family Names 2nd edition, 2022