cancroid vs contagion

cancroid

noun
  • Any disease that resembles cancer 

  • Squamous cell carcinoma 

adj
  • Of or pertaining to cancer, especially to squamous cell carcinoma 

  • Resembling a crab 

contagion

noun
  • The spread or transmission of such a disease. 

  • The spread of (initially small) shocks, which initially affect only a few financial institutions or a particular region of an economy, to other financial sectors and other countries whose economies were previously healthy. 

  • The passing on of manners or behaviour through a closed community or household. 

  • A recession or crisis developed in such manner. 

  • A disease spread by contact. 

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