ruin vs strengthen

ruin

verb
  • To upset or overturn the plans or progress of, or to have a disastrous effect on something. 

  • To seduce or debauch, and thus harm the social standing of. 

  • To make something less enjoyable or likeable. 

  • To cause the fiscal ruin of; to bankrupt or drive out of business. 

  • To destroy or make something no longer usable. 

  • To reveal the ending of (a story); to spoil. 

noun
  • The state of being a ruin, destroyed or decayed. 

  • A change that destroys or defeats something; destruction; overthrow. 

  • The remains of a destroyed or dilapidated construction, such as a house or castle. 

  • The act of ruining something. 

  • Complete financial loss; bankruptcy. 

  • Something that leads to serious trouble or destruction. 

strengthen

verb
  • To reinforce, to add to, to support (someone or something) 

  • To make strong or stronger; to add strength to; to increase the strength of; to fortify. 

  • To empower; to give moral strength to; to encourage; to enhearten. 

  • To grow strong or stronger. 

  • To substantiate; to corroborate (a belief, argument, etc.) 

  • To augment; to improve; to intensify. 

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