drollery vs humor

drollery

noun
  • Amusing behavior. 

  • A small decorative image in the margin of an illuminated manuscript. 

  • Something humorous, funny or comical. 

  • Comical quality. 

  • A joke; a funny story. 

humor

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