Heathen vs heretical

Heathen

adj

  • Pertaining or adhering to the Germanic neo-pagan faith Heathenry. 

noun

  • An adherent of the Germanic neo-pagan faith of Heathenry. 

heretical

adj

  • Of or pertaining to heresy or heretics. 

  • Contrary to mainstream or accepted opinion. 

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