a person engaged in commercial or industrial business (especially an owner or executive)
"The local businessman donated his entire savings to rebuild the community center after the storm destroyed it."
A man in business, one who works at a commercial institution.
"The new employee introduced herself as a businessman before explaining her role in managing the company's retail stores."
The word businessman comes from combining the word business with the suffix -man. It originally took over the role of the word merchant, which traces back to the Latin term mercāns meaning "merchant" or "buyer."