disquisitive vs puzzling

disquisitive

adj
  • Relating to disquisition; fond of discussion or investigation; inquisitive. 

puzzling

adj
  • Difficult to understand or explain; enigmatic or confusing; perplexing. 

noun
  • Time spent pondering something confusing. 

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