diddy vs nugatory

diddy

adj
  • very small, tiny 

noun
  • A woman's breast. 

  • A fool, a tit. 

  • A gypsy. 

nugatory

adj
  • Trivial, trifling or of little importance. 

  • Having no force, inoperative, ineffectual. 

  • Removable from a computer program with safety, but harmless if retained. 

  • Ineffective, invalid or futile. 

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