crossword vs puzzlement

crossword

noun
  • The grid of such a puzzle 

  • A word puzzle in which interlocking words are entered usually horizontally and vertically into a grid based on clues given for each word. 

puzzlement

noun
  • A puzzle. 

  • The confusing state of being puzzled; bewilderment 

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