Niflheim vs paradise

Niflheim

name
  • In Germanic and Norse cosmology, the Norse underworld, location of the domain Hel and of the realm of Hel, the goddess of the dead. 

paradise

verb
  • To place (as) in paradise. 

noun
  • A very pleasant place, such as a place full of lush vegetation. 

  • An ideal place for a specified type of person, activity, etc. 

  • The place where sanctified souls are believed to live after death. 

  • A garden where Adam and Eve first lived after being created. 

  • The upper gallery in a theatre. 

  • A very pleasant experience. 

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