allay vs summon up

allay

verb
  • To make quiet or put at rest; to pacify or appease; to quell; to calm. 

  • To alleviate; to abate; to mitigate. 

noun
  • Alleviation; abatement; check. 

summon up

verb
  • To look within oneself to find and put into action a particular positive quality, such as strength, energy or courage. 

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