accessorial vs circumstantial

accessorial

adj
  • Of or pertaining to an accessory, e.g. to a crime. 

  • Of or relating to an accession. 

  • Assessorial. 

noun
  • An assessorial charge. 

circumstantial

adj
  • Full of circumstance or pomp; ceremonial. 

  • Pertaining to or dependent on circumstances, especially as opposed to essentials; incidental, not essential. 

  • Suggesting guilt, but not proving it conclusively. 

  • Abounding with minor circumstances; in great detail; particular. 

noun
  • Something incidental to the main subject, but of less importance. 

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