A boot space or rather a car boot is the UK English equivalent to what is known as the trunk of a car in American English. It is most commonly situated at the rear of a vehicle and is used to hold various cargo. Although the modern meanings are entirely different to each other, the origin of the car boot is the same as the origin of the boots that you wear on your feet; although the more modern meaning, referring to a luggage storage compartment came into use roughly three centuries later.
- Three centuries later than what?
- That seems like the 17th Century, cars weren't invented until the 19th century?