drudge vs take it easy

drudge

noun
  • A person who works in a low servile job. 

  • Someone who works for (and may be taken advantage of by) someone else. 

verb
  • To labour in (or as in) a low servile job. 

take it easy

verb
  • A farewell (for parting or closing). 

  • To relax or rest. 

How often have the words drudge and take it easy occurred in a corpus of books? (source: Google Ngram Viewer )