comfort vs leg up

comfort

noun
  • A cause of relief or satisfaction. 

  • Something that offers comfort. 

  • A consolation; something relieving suffering or worry. 

  • Contentment, ease. 

verb
  • To relieve the distress or suffering of; to provide comfort to. 

  • To make comfortable. 

leg up

noun
  • A boost, a sudden improvement; an advantage, an edge. 

  • Assistance, help given to get started or overcome a problem or obstacle. 

  • The act of assisting another's progress over a wall or other obstacle by forming a step for one of their feet with one's hands. 

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