attendant vs slave-driver

attendant

noun
  • A servant or valet. 

  • One who attends; one who works with or watches over something. 

  • That which accompanies or follows. 

  • One who owes a duty or service to another. 

adj
  • Depending on, or owing duty or service to. 

  • Going with; associated; concomitant. 

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 attendant and slave-driver occurred in a corpus of books? (source: Google Ngram Viewer )