attain vs disappear

attain

verb
  • To reach or come to, by progression or motion; to arrive at (a place, time, state, etc.). 

  • To gain (an object or desired result). 

  • To come or arrive, by motion, growth, bodily exertion, or efforts toward a place, object, state, etc. 

disappear

verb
  • To go missing; to become a missing person. 

  • To make vanish; especially, to abduct and murder surreptitiously for political reasons. 

  • To go away; to become lost. 

  • To vanish. 

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