own vs possess

own

verb
  • To have rightful possession of (property, goods or capital); to have legal title to; to acquire a property or asset. 

  • To confess. 

  • To take responsibility for. 

  • To be very good. 

  • To virtually or figuratively enslave. 

  • To admit, concede, grant, allow, acknowledge, confess; not to deny. 

  • To defeat or embarrass; to overwhelm. 

  • To illicitly obtain superuser or root access to a computer system, thereby having access to all of the user files on that system; pwn. 

  • To defeat, dominate, or be above, also spelled pwn. 

  • To have recognized political sovereignty over a place, territory, as distinct from the ordinary connotation of property ownership. 

  • To admit; concede; acknowledge. 

  • To proudly acknowledge; to not be ashamed or embarrassed of. 

  • To claim as one's own. 

  • To recognise; acknowledge. 

adj
  • Not shared. 

  • Belonging to; possessed; acquired; proper to; property of; titled to; held in one's name; under/using the name of. Often marks a possessive determiner as reflexive, referring back to the subject of the clause or sentence. 

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 own and possess occurred in a corpus of books? (source: Google Ngram Viewer )