hygge vs rogation

hygge

noun
  • Cosiness, comfort, contentment, conviviality. 

adj
  • Cosy, convivial. 

rogation

noun
  • A deeply serious and somber prayer or entreaty. 

  • The demand, by the consuls or tribunes, of a law to be passed by the people; a proposed law or decree. 

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