dejection vs pensiveness

dejection

noun
  • A state of melancholy or depression; low spirits, the blues. 

  • The act of humbling or abasing oneself. 

  • A low condition; weakness; inability. 

pensiveness

noun
  • A thoughtful or reflective state, especially if sad or melancholic. 

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