conventicle vs sederunt

conventicle

noun
  • The place where such a meeting is held. 

  • A secret, unauthorized or illegal religious meeting. 

  • A Quaker meetinghouse. 

verb
  • To hold a secret, unauthorized or illegal religious meeting. 

sederunt

noun
  • Those people present at such a meeting. 

  • A formal meeting, especially of a judicial or ecclesiastical body. 

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