buck up vs condolences

buck up

intj
  • Cheer up; take courage; take heart. 

verb
  • To pass on to higher authority for resolution. See also pass the buck. 

  • To encourage; to hearten. 

  • To become encouraged, reinvigorated, or cheerful; to summon one's courage or spirits; to pluck up courage. 

condolences

intj
  • Expressing sympathy to someone, especially after learning of a close death. 

noun
  • comfort, support, or sympathy offered especially to the family and friends of somebody who has died. 

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