Abecedarian vs adherent

Abecedarian

noun
  • A member of a 16th-century Anabaptist sect, follower of the Zwickau prophets (and specially of Thomas Storch), who believed that any kind of knowledge (even basic reading and writing) would keep one from reaching obtaining salvation. 

adherent

noun
  • A person who has membership in some group, association or religion. 

adj
  • Adhesive, sticking to something. 

  • Having the quality of clinging or sticking fast to something. 

  • Attaching or pressing against a different organ. 

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