ruin vs spoil

ruin

verb
  • To destroy or make something no longer usable. 

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

  • To make something less enjoyable or likeable. 

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

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

  • 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. 

spoil

verb
  • To ruin; to damage (something) in some way making it unfit for use. 

  • To ruin the character of, by overindulgence; to coddle or pamper to excess. 

  • To reveal the ending or major events of (a story etc.); to ruin (a surprise) by exposing it ahead of time. 

  • To render (a ballot paper) invalid by deliberately defacing it. 

  • Of food, to become bad, sour or rancid; to decay. 

  • To reduce the lift generated by an airplane or wing by deflecting air upwards, usually with a spoiler. 

noun
  • Material (such as rock or earth) removed in the course of an excavation, or in mining or dredging. Tailings. Such material could be utilised somewhere else. 

  • Plunder taken from an enemy or victim. 

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