cesser vs discontinuation

cesser

noun
  • termination or cessation. 

  • A neglect of a tenant to perform services, or make payment, for two years. 

discontinuation

noun
  • The process of quitting a course of treatment with a drug. 

  • The act of stopping producing or supplying a product. 

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