hefty vs sinewy

hefty

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

  • Heavy, strong, vigorous, mighty, impressive. 

  • Strong; bulky. 

  • Heavy, weighing a lot. 

  • Large. 

sinewy

adj
  • Possessing physical strength and weight; rugged and powerful. 

  • Tough; having strong sinews. 

  • Having or showing nervous strength. 

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