dedicatory vs forgetful

dedicatory

adj
  • Of or pertaining to dedication. 

noun
  • A dedication. 

forgetful

adj
  • Dropping some of the input's structure or properties before producing an output. 

  • Unable to remember things well; liable to forget. 

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