What is the origin of word ‘Juggernaut’?

History has it that when the British first observed the Rath Yatra in the 18th century, they were so amazed that they sent home shocking descriptions which gave rise to the term ‘juggernaut’, meaning “destructive force”. This connotation may have originated from the occasional but accidental death of some devotees under the chariot wheels caused by the crowd and commotion.