alleviation vs refreshment

alleviation

noun
  • the act of alleviating; relief or mitigation. 

  • the act of reducing pain or anything else unpleasant; easement 

refreshment

noun
  • The action of refreshing; a means of restoring strength, energy or vigour. 

  • A light snack or drink. 

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