invigorate vs liven someone or something up

invigorate

verb
  • To impart vigor, strength, or vitality to. 

  • To heighten or intensify. 

  • To make lively. 

  • To give life or energy to. 

liven someone or something up

How often have the words invigorate and liven someone or something up occurred in a corpus of books? (source: Google Ngram Viewer )