fun size vs nugatory

fun size

adj
  • Small in size. 

noun
  • A small size. 

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 fun size and nugatory occurred in a corpus of books? (source: Google Ngram Viewer )