fritz vs stagnate

fritz

verb
  • To go wrong or become defective. 

noun
  • A type of processed meat sausage; devon 

  • The state of being defective. 

stagnate

verb
  • To be or become foul from standing. 

  • To cease to develop, advance, or change; to become idle. 

  • To cease to flow or run. 

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