development vs sequel

development

noun
  • The active placement of the pieces, or the process of achieving it. 

  • The process of developing; growth, directed change. 

  • A project consisting of one or more commercial or residential buildings. 

  • The expression of a function in the form of a series. 

  • The building of such a project. 

  • Something which has developed. 

  • The application of new ideas to practical problems (cf. research). 

  • The process by in which previous material is transformed and restated. 

  • The second section of a piece of music in sonata form, in which the original theme is revisited in altered and varying form. 

  • The process by which a mature multicellular organism or part of an organism is produced by the addition of new cells. 

sequel

noun
  • Thirlage. 

  • A narrative that is written after another narrative set in the same universe, especially a narrative that is chronologically set after its predecessors, or (perhaps improper usage) any narrative that has a preceding narrative of its own. 

  • The remainder of the text; what follows. Used exclusively in the set phrase "in the sequel". 

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