ingenuousness vs ploy

ingenuousness

noun
  • An ingenuous behavior. 

  • The condition of being ingenuous. 

ploy

verb
  • To form a column from a line of troops on some designated subdivision. 

noun
  • Sport; frolic. 

  • A tactic, strategy, or scheme. 

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