Jeep is a brand of American automobiles. Jeep's current product range consists solely of sport utility vehicles and off-road vehicles, but has also included pickup trucks in the past.
The first Willys MB Jeeps were produced in 1941, making it the oldest off-road vehicle ever made, and the first civilian models were produced in 1945. It inspired a number of other light utility vehicles, such as the Land Rover.
The original Jeep vehicle became the primary light 4-wheel-drive vehicle of the United States Army and Allies during World War II, as well as the postwar period.
Many explanations of the origin of the word jeep have proven difficult to verify. The most widely held theory is that the military designation GP (for Government Purposes or General Purpose) was slurred into the word Jeep in the same way that the contemporary HMMWV (for High-Mobility Multi-purpose Wheeled Vehicle) has become known as the Humvee.