obsessed vs prone

obsessed

adj
  • Influenced or controlled by evil spirits, but less than possessed in that the spirits do not actually reside in the victim. 

  • Intensely preoccupied with or by a given topic or emotion; driven by a specified obsession. 

prone

adj
  • Predisposed, liable, inclined. 

  • Of the hand, forearm or foot: turned facing away from the body; with the thumb inward or big toe downward. 

  • Having a downward inclination or slope. 

  • Lying face downward. 

verb
  • To place in a prone position, to place face down. 

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