juggernaut vs pantechnicon

juggernaut

noun
  • A large, cumbersome truck or lorry, especially an artic. 

  • An institution that incites destructive devotion or to which people are carelessly sacrificed. 

  • A literal or metaphorical force or object regarded as unstoppable, that will crush all in its path. 

pantechnicon

noun
  • Originally pantechnicon van: a van, especially a large moving or removal van. 

  • A building or place housing shops or stalls where all sorts of (especially exotic) manufactured articles are collected for sale. 

How often have the words juggernaut and pantechnicon occurred in a corpus of books? (source: Google Ngram Viewer )