hydrophobia vs hysteria

hydrophobia

noun
  • A morbid fear of water; aquaphobia. 

  • An aversion to water, as a symptom of rabies; the disease of rabies itself. 

hysteria

noun
  • Behavior exhibiting excessive or uncontrollable emotions, in a wide range from joy to panic but usually including anxiety or fear. 

  • Synonym of conversion disorder 

  • A mental disorder characterized by emotional excitability etc. without an organic cause. 

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