autosuggestion vs self-suggestion

autosuggestion

noun
  • An autosuggest feature. 

  • An instance of suggesting a thought to oneself. 

  • The practice of suggesting thoughts to oneself, as in autohypnosis. 

self-suggestion

noun
  • Synonym of autosuggestion 

How often have the words autosuggestion and self-suggestion occurred in a corpus of books? (source: Google Ngram Viewer )