soften vs solace

soften

verb
  • To make less harsh 

  • To make something soft or softer. 

  • To palatalize. 

  • To become or make (a consonant) more lenis, to lenite. 

  • To become soft or softer 

  • To undermine the morale of someone (often soften up). 

solace

verb
  • To allay or assuage. 

  • To give solace to; comfort; cheer; console. 

  • To take comfort; to be cheered. 

noun
  • Comfort or consolation in a time of loneliness or distress. 

  • A source of comfort or consolation. 

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