prove out vs try on

prove out

verb
  • To demonstrate the feasibility of; to show or be shown to be feasible, accurate, true, satisfactory, as expected, hoped, stated, etc. 

  • To turn out to be feasible, accurate, true, satisfactory, as expected, hoped, stated, etc. 

try on

verb
  • To attempt; to undertake. 

  • To test the look or fit of (a garment) by wearing it. 

How often have the words prove out and try on occurred in a corpus of books? (source: Google Ngram Viewer )