grieve vs slave-driver

grieve

noun
  • A manager or steward, e.g. of a farm. 

verb
  • To submit or file a grievance (about). 

  • To feel very sad about; to mourn; to sorrow for. 

  • To cause sorrow or distress to. 

  • To experience grief. 

slave-driver

noun
  • An overseer of slaves at work; a person who puts slaves to work. 

  • An employer who demands excessive amounts of work from employees. 

How often have the words grieve and slave-driver occurred in a corpus of books? (source: Google Ngram Viewer )