functionalism vs severity

functionalism

noun
  • The definition of mental states in terms of their causes and effects. 

  • A doctrine, in several fields, that the function of something should be reflected in its design and the materials used in its construction. 

  • Synonym of functional linguistics 

  • The idea that social and cultural cohesion are a function of the interdependence and interactions of the institutions of a society. 

  • A general school of thought that considers psychological phenomena in terms of their role in adaptation to the person's environment. 

severity

noun
  • The state of being severe. 

  • The degree of something undesirable; badness or seriousness. 

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