accessorial vs involuntary

accessorial

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

  • Of or relating to an accession. 

  • Assessorial. 

noun
  • An assessorial charge. 

involuntary

adj
  • Without intention; unintentional. 

  • Not voluntary or willing; contrary or opposed to explicit will or desire; unwilling. 

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