folly vs fun

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. 

fun

noun
  • amusement, enjoyment or pleasure 

  • playful, often noisy, activity. 

verb
  • To tease, kid, poke fun at, make fun of. 

adj
  • Enjoyable or amusing. 

  • Whimsical or flamboyant. 

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