blemish vs preserve

blemish

verb
  • To tarnish (reputation, character, etc.); to defame. 

  • To spoil the appearance of. 

noun
  • A moral defect; a character flaw. 

  • A small flaw which spoils the appearance of something, a stain, a spot. 

preserve

verb
  • To protect; to keep from harm or injury. 

  • 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. 

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 blemish and preserve occurred in a corpus of books? (source: Google Ngram Viewer )