runemaster vs spiritist

runemaster

noun
  • One who has mastered the use of runes for magical, divinatory, or other esoteric uses. 

  • A runesmith; one skilled at carving and deciphering runes. 

spiritist

noun
  • Spiritualist. 

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