Heathen vs primeval

Heathen

adj

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

noun

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

primeval

adj

  • Belonging to the first ages. 

  • Primitive. 

  • Primary; original. 

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