calorific vs hefty

calorific

adj
  • High in calories and thus likely fattening. 

  • Relating to calories. 

  • Relating to or producing heat or other energy. 

hefty

adj
  • Heavy, weighing a lot. 

  • Heavy, strong, vigorous, mighty, impressive. 

  • Strong; bulky. 

  • Large. 

  • Possessing physical strength and weight; rugged and powerful; powerfully or heavily built. 

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