pantagruelian vs ravening

pantagruelian

adj

  • voracious, insatiable. 

  • huge, gigantic, enormous. 

ravening

adj

  • Voracious and greedy. 

noun

  • Eagerness for plunder; rapacity; extortion. 

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