disciple vs rav

disciple

noun
  • A person who learns from another, especially one who then teaches others. 

  • An active follower or adherent of someone, or some philosophy etc. 

  • A wretched, miserable-looking man. 

verb
  • To routinely counsel (one's peer or junior) one-on-one in their discipleship of Christ, as a fellow affirmed disciple. 

  • To convert (a person) into a disciple. 

  • To train, educate, teach. 

rav

noun
  • a teacher or spiritual guide 

  • a rabbi 

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