circumstantially vs discontinuously

circumstantially

adv
  • in a circumstantial manner 

  • In respect to circumstances; not essentially; accidentally. 

  • In every circumstance or particular; minutely. 

discontinuously

adv
  • In a discontinuous manner; not continuously. 

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