consternation vs disquietude

consternation

noun
  • Amazement or horror that confounds the faculties, and incapacitates for reflection; terror, combined with amazement; dismay. 

disquietude

noun
  • A fear or an instance of uneasiness. 

  • A state of disquiet, uneasiness, or anxiety. 

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