algor vs shudder

algor

noun
  • cold, chilliness 

shudder

noun
  • A shivering tremor, often from fear or horror. 

  • A moment of almost pleasurable fear; a frisson. 

verb
  • To vibrate jerkily. 

  • To shake nervously, often from fear or horror. 

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