From Longman Dictionary of Contemporary Englishbroughambrough‧am /ˈbruːəm/ noun [countable] TTBa carriage used in the past, that had four wheels and a roof and was pulled by a horse
Examples from the Corpus
brougham• I saw his carriage, a fine two-horse brougham, pull away as I arrived for my visit.• The driver stopped the brougham in the middle of the block without having to be told.Origin brougham (1800-1900) Lord Brougham (1778-1868), Scottish lawyer, who invented it