EDGE vs pedagogue

EDGE

noun
  • Explain, demonstrate, guide, enable; an educating method. 

  • Notation for an edge rusher. 

pedagogue

noun
  • A teacher or instructor of children; one whose occupation is to teach the young. 

  • A pedant; one who by teaching has become overly formal or pedantic in his or her ways; one who has the manner of a teacher. 

  • A slave who led the master's children to school, and had the charge of them generally. 

verb
  • To teach. 

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