continuative vs incessive

continuative

adj
  • durative. 

  • Of or pertaining to continuation. 

noun
  • a durative. 

  • Something that causes a continuation. 

incessive

adj
  • Durative. 

  • Insightful; deep and succinct; incisive. 

  • Intruding inward. 

  • Tending to incite or inflame; incensive. 

  • Intense and active. 

  • Synonym of inessive 

  • Fierce; cruel and aggressive. 

  • Continual or successive; unceasing. 

  • Critical and accurate; incisive. 

  • Included. 

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