flavourer vs seasoning

flavourer

noun
  • British standard spelling of flavorer. 

seasoning

noun
  • Something used to add taste or flavour to food, such as salt and pepper or other condiment, herb or spice. 

  • Anything added to increase enjoyment. 

  • A coat of polymerized oil inside a cooking vessel which renders the surface non-stick. 

  • In diamond-cutting, the charging of the laps or wheels with diamond dust and oil. 

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