bondman vs menial

bondman

noun
  • A man who is bound in servitude. 

menial

noun
  • A person who has a subservient nature. 

  • A servant, especially a domestic servant. 

adj
  • Of or relating to unskilled work. 

  • Servile; low; mean. 

  • Of or relating to work normally performed by a servant. 

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