inform vs puzzle

inform

verb
  • To impart information or knowledge. 

  • To give form or character to; to inspire (with a given quality); to affect, influence (with a pervading principle, idea etc.). 

  • To act as an informer; denounce. 

  • To communicate knowledge to. 

adj
  • Without regular form; shapeless; ugly; deformed. 

puzzle

verb
  • To make intricate; to entangle. 

  • To think long and carefully, in bewilderment. 

  • To perplex, confuse, or mystify; to cause (someone) to be faced with a mystery, without answers or an explanation. 

noun
  • Anything that is difficult to understand or make sense of. 

  • A riddle. 

  • The state of being puzzled; perplexity. 

  • A game for one or more people that is more or less difficult to work out or complete. 

  • A jigsaw puzzle. 

  • A crossword puzzle. 

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