earn vs mooch

earn

verb
  • To cause (someone) to receive payment or reward. 

  • To achieve by being worthy of. 

  • To receive payment for work. 

  • To gain (success, reward, recognition) through applied effort or work. 

mooch

verb
  • To beg, cadge, or sponge; to exploit or take advantage of others for personal gain. 

  • To wander around aimlessly, often causing irritation to others. 

  • To steal or filch. 

noun
  • An aimless stroll. 

  • One who mooches; a moocher. 

  • A unit of time comprising ten days, used to measure how long someone holds a job. 

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