menial vs navvy

menial

noun
  • A servant, especially a domestic servant. 

  • A person who has a subservient nature. 

adj
  • Of or relating to unskilled work. 

  • Servile; low; mean. 

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

navvy

noun
  • A laborer on a civil engineering project such as a canal or railroad. 

verb
  • To carry out physical labor on a civil engineering project. 

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