clodhopping vs lumpen

clodhopping

adj
  • boorish; rude 

lumpen

adj
  • Lump-like. 

  • Plebeian. 

  • Of or relating to social outcasts. 

  • Of or relating to the lumpenproletariat. 

verb
  • To make or become like lumps; make or become lumpy 

noun
  • A member of the lumpenproletariat. 

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