What country did the word juggernaut originate?

Answer 1

The word comes from from the Sanskrit word 'Jagannātha', one of the names of the Indian God Krishna. The word was used by the British in India to describe the huge wagon that carried the image of this god during religious festivals in India. The link to the present "unstoppable thing that crushes everhing in its way" is caused by desriptions (accurate or not) of fanatical believers throwing themselves under the wheels of the wagon as an act of piety.