treatment vs writing

treatment

noun
  • A treatise; a formal written description or characterization of a subject. 

  • Medical care for an illness or injury. 

  • A brief, third-person, present-tense summary of a proposed film. 

  • The use of a substance or process to preserve or give particular properties to something. 

  • The process or manner of treating someone or something. 

writing

noun
  • Something written, such as a document, article or book. 

  • The process of representing a language with symbols or letters. 

  • The style of writing of a person. 

  • Intended for or used in writing. 

  • Graphism of symbols such as letters that express some meaning. 

  • A work of an author. 

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