clodhopper vs reaper

clodhopper

noun
  • A peasant or yokel. 

  • Any kind of shoe. 

  • A strong shoe for heavy-duty use, a boot. 

  • Wheatear; any of various passerine birds. 

  • A clumsy or foolish person. 

  • United States Navy ankle length work shoes, distinct from dress shoes or combat boots. 

reaper

noun
  • One who reaps; a person employed to harvest crops from the fields by reaping. 

  • The recluse spider (Loxosceles and Sicarius spp.). 

  • A machine used to harvest crops. 

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