gentleman:

During the Georgian period, to be a gentleman generally meant you did not work to make a living. Instead, you lived off the proceeds of savings or income derived from the land, usually from rents. Technically then, you could become a gentleman if you made enough money, like Charles Bingley’s father in Pride and Prejudice. The status was also extended to the clergy, lawyers (that is barristers, but not solicitors) physicians (but not surgeons) and the military.