Persian karwan named the organized merchant convoys that crossed the deserts for safety, goods, animals, and people moving together because alone meant dead. The routes they wore became the caravan roads, the spine of the Silk Road, punctuated every day's march by a caravanserai, caravan-palace, the walled inn that fed and guarded them. English borrowed the word around 1590 through Italian carovana.
The word traveled like its object: into Turkish, Arabic, Hindi, then every European language, shedding the convoy and keeping the motion. By the twentieth century English had parked it entirely: the caravan became the towed holiday box, a room that moves, the convoy reduced to one family and a kettle. The desert's survival protocol retired into a seaside parking spot.
The claim: karwan encodes the oldest risk-management insight, the group is the insurance, and every networked age reinvents the caravanserai, forums, convoys, group chats, because alone-on-the-road is still the default terror. Verdict: the word's entire history supports it, the thing named was never the wagon but the company. When English parked the caravan, it kept the deeper cargo anyway: nobody holidays alone in the desert of the unfamiliar.
What happened to the convoy that only the vehicle survived?