extrication vs generalisation

extrication

noun
  • The act or process of extricating or disentangling; a freeing from perplexities; disentanglement. 

  • Rescue of a trapped person in vehicle or machinery 

  • The act of sending out or evolving. 

generalisation

noun
  • Inductive reasoning from detailed facts to general principles. 

  • The formulation of general concepts from specific instances by abstracting common properties. 

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