flaw vs preserve

flaw

verb
  • To add a flaw to, to make imperfect or defective. 

  • To become imperfect or defective; to crack or break. 

noun
  • A storm of short duration. 

  • An inclusion, stain, or other defect of a diamond or other gemstone. 

  • A sudden burst of noise and disorder 

  • A crack or breach, a gap or fissure; a defect of continuity or cohesion. 

  • A defect or error in a contract or other document which may make the document invalid or ineffective. 

  • A defect, fault, or imperfection, especially one that is hidden. 

  • A sudden burst or gust of wind of short duration; windflaw. 

preserve

verb
  • To save from decay by the use of some preservative substance, such as sugar or salt; to season and prepare (fruits, meat, etc.) for storage. 

  • To maintain throughout; to keep intact. 

  • To protect; to keep from harm or injury. 

noun
  • An activity with restricted access. 

  • A sweet spread made of any of a variety of fruits. 

  • A reservation, a nature preserve. 

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