hoping vs promissory

hoping

adj
  • Filled with or inspiring hope. 

verb
  • transport-hiking, train-hiking 

  • I'm hoping the weather will be sunny tomorrow. 

promissory

adj
  • Containing or consisting of a promise. 

  • Stipulating the future actions required of the parties to an insurance policy or other business agreement. 

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