dumper vs freightwagon

dumper

noun
  • A small vehicle often used to carry loads and material around, often on building sites. 

  • One who dumps a boyfriend or girlfriend; the one of a romantic couple who terminates the relationship. 

  • A wave that knocks a surfer into the water. 

  • A program that outputs the contents of storage or a data structure. 

  • A dropper of refuse, particularly not in landfill sites/recycling sites. 

freightwagon

noun
  • Any vehicle, such as a cart, wagon, lorry, truck, or boxcar, used for carrying or transporting goods; a cargo truck. 

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