algor vs congelation

algor

noun
  • cold, chilliness 

congelation

noun
  • The act or process of passing, or causing to pass, from a fluid to a solid state, as by the abstraction of heat; the act or process of freezing. 

  • That which is congealed. 

  • The state of being congealed. 

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