explanation vs prefiguration

explanation

noun
  • Something that explains, makes understandable. 

  • A resolution of disputed points pursuant to discussion; a mutual clarification of disputed points; reconciliation. 

  • The act or process of explaining. 

prefiguration

noun
  • Something that prefigures. 

  • A vague representation or suggestion of something before it has happened or been accomplished. 

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