requital vs solatium

requital

noun
  • Compensation for loss or damage; amends. 

  • Repayment, reward, recompense, return in kind. 

  • Retaliation or reprisal; vengeance. 

solatium

noun
  • A form of compensation for emotional rather than physical or financial harm. 

  • Intangible or emotional compensation. 

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