Brooklyn comes from the New York borough — and the borough was named after the Dutch town of Breukelen, meaning "broken land" or "marshy land," reflecting the wet terrain of original colonial Brooklyn. The name is now far better known as a place name than as a geographic descriptor.
Brooklyn entered the U.S. top 1000 as a girl's name in 1990 and rose rapidly into the top 50. It belongs to the modern wave of place-name first names (Brooklyn, Madison, Savannah, Aspen, Tennessee), each carrying its own American resonance.
Brooklyn reduces to four — the number of urban grit and quiet stability.