soothsaying vs zodiac

soothsaying

noun
  • A method of foretelling the future. 

zodiac

noun
  • The twelve equal divisions of the zodiacal region into signs or houses, each named for a prominent constellation in the region. 

  • Any of various astrological systems considered similar to the above. 

  • A circle decorated with the signs of the zodiac. 

  • The ecliptic: the belt-like region of the celestial sphere corresponding to the apparent path of the sun over the course of a year. 

  • The belt-like region of the celestial sphere approximately eight degrees north and south of the ecliptic which include the apparent path of the sun, moon, and visible planets. 

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