inequity vs villainy

inequity

noun

  • An unjust act; a disservice. 

  • A lack of equity (justice). 

villainy

noun

  • A wicked or treacherous act. 

  • Evil or wicked character or behaviour. 

adj

  • Characteristic of a villain. 

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