folly vs recklessness

folly

noun
  • Foolishness that results from a lack of foresight or lack of practicality. 

  • a pinkish-red color 

  • A fanciful building built for purely ornamental reasons. 

  • Thoughtless action resulting in tragic consequence. 

recklessness

noun
  • The state or quality of being reckless or heedless, of taking unnecessary risks. 

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