inchoative vs preliminary

inchoative

noun
  • An inchoative construction. 

adj
  • At the beginning, still in an unformed state. 

  • Aspectually indicating that a state is about to be entered or is in the process of being entered. 

  • Inflected in or relating to the inchoative aspect. 

preliminary

noun
  • A preparation for a main matter; an introduction. 

  • Any of a series of sports events that determine the finalists 

  • A relatively minor contest that precedes a major one, especially in boxing 

adj
  • In preparation for the main matter; initial, introductory, preparatory. 

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