hypostatize vs instantiate

hypostatize

verb
  • To render into, or regard as, a separate and distinct substance; to construe a contextually-subjective and complex abstraction, idea, or concept as a universal object without regard to nuance or change in character. 

  • To attribute actual or personal existence to. 

instantiate

verb
  • To represent (a concept, theme, or principle) by an instance. 

  • To create an object (an instance) of a specific class. 

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