ギリシャ語のtrokhos(車輪)から。trekhein(転がる、走る)が語源で、PIE*dhregh(走る)が変形し、PIE*dhragh(押す、引く)が語源と思われる。
There have also been lost to the enemy 6,200 guns, 2,550 tanks and 70,000 trucks, which is the American name for lorries, and which, I understand, has been adopted by the combined staffs in North-West Africa in exchange for the use of the word petrol in place of gasolene. [Winston Churchill, address to joint session of U.S. Congress, May 19, 1943]Truck stop is attested from 1956.