burn out vs run ragged

burn out

noun
  • (of a person) The condition of tiredness due to overwork. 

verb
  • To end one's shift at a job. 

  • To have one's tires skid against the ground; to peel off, peel out. 

  • To destroy by fire. 

  • To cause (someone) to tire due to overwork; to cause (someone) to overwork to one's limit. 

  • To make (someone) unavailable for work involving exposure to ionizing radiation by employing (the person) in such work until the person's accumulated exposure reaches the maximum permitted for an administrative period, typically a year. 

  • To tire due to overwork; to overwork to their limit. 

  • To become extinguished due to lack of fuel. 

  • To become nonfunctional (especially of lightbulbs or similar light-producing devices). 

run ragged

How often have the words burn out and run ragged occurred in a corpus of books? (source: Google Ngram Viewer )