conserve vs put aside

conserve

verb
  • To save for later use, sometimes by the use of a preservative. 

  • To protect an environment, heritage, etc. 

  • To remain unchanged during a process 

noun
  • Wilderness where human development is prohibited. 

  • A jam or thick syrup made from fruit. 

put aside

verb
  • To save or keep (something) to be used at a later time. 

  • Used other than figuratively or idiomatically: see put, aside. 

  • To ignore or intentionally disregard (something), temporarily or permanently, so that more important things can occupy one's attention. 

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