festering vs spoiled

festering

noun
  • The condition of something that festers. 

spoiled

adj
  • The state of being heavily pampered 

  • Having a selfish or greedy character due to pampering. 

  • That has deteriorated to the point of no longer being usable or edible. 

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