daimon vs zed

daimon

noun
  • Synonym of demon, particularly as 

  • A tutelary deity or spirit that watches over a person or place. 

zed

noun
  • A zombie. 

  • Something Z-shaped. 

  • The name of the Latin-script letter Z. 

  • Sleep. 

verb
  • To sleep or nap. (Compare zzz, catch some z's.) 

  • To zigzag; to move with sharp alternating turns. 

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