dormant vs taking forty winks

dormant

adj
  • In a sleeping posture; distinguished from couchant. 

  • Inactive, sleeping, asleep, suspended. 

  • Leaning. 

noun
  • A crossbeam or joist. 

taking forty winks

How often have the words dormant and taking forty winks occurred in a corpus of books? (source: Google Ngram Viewer )