blissfulness vs delirium

blissfulness

noun
  • The characteristic of being blissful. 

delirium

noun
  • Wild, frenzied excitement or ecstasy. 

  • A temporary mental state with a sudden onset, usually reversible, including symptoms of confusion, inability to concentrate, disorientation, anxiety, and sometimes hallucinations. Causes can include dehydration, drug intoxication, and severe infection. 

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