Cartel
Group of business men intent on price fixing.
The origin of this one starts with the 16th century Italian word cartello which meant a written challenge to a duel. in the next hundred years or so it morphed into the agreement between armies in the wake of peace treaty. This agreement would fix things such as the transfer of prisoners, disposition of the armies and other various things in preparation for peace. This method of “fixing” things would eventually make its way into the commercial world to indicate the fixing of prices.