need vs possess

need

verb
  • To be obliged or required (to do something). 

  • To be required; to be necessary. 

  • To want strongly; to feel that one must have something. 

  • To have an absolute requirement for. 

noun
  • Lack of means of subsistence; poverty; indigence; destitution. 

  • A requirement for something; something needed. 

possess

verb
  • To have (something) as, or as if as, an owner; to have, to own. 

  • To dominate sexually; to have sexual intercourse with. 

  • To have control or possession of, but not to own (a chattel or an interest in land). 

  • Of an idea, thought, etc.: to dominate (someone's mind); to strongly influence. 

  • Of a person: to control or dominate (oneself or someone, or one's own or someone's heart, mind, etc.). 

  • To inhabit or occupy a place. 

  • Of a supernatural entity, especially one regarded as evil: to take control of (an animal or person's body or mind). 

  • To dominate (a person) sexually; to have sexual intercourse with (a person). 

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