determinative vs invalid

determinative

adj
  • Sufficient to decide something (such as a question of fact or of law). 

noun
  • A member of a class of words functioning in a noun phrase to identify or distinguish a referent without describing or modifying it. 

  • An ideogram used to mark semantic categories of words in logographic scripts. 

invalid

verb
  • To make invalid or affect with disease. 

  • To exempt from (often military) duty because of injury or ill health. 

adj
  • Not valid; not true, correct, acceptable or appropriate. 

  • Suffering from disability or illness. 

  • Intended for use by an invalid. 

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