drollery vs seriousness

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. 

seriousness

noun
  • The state or quality of being serious. 

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