torpid vs torporific

torpid

adj
  • lazy, lethargic or apathetic 

  • unmoving 

  • dormant or hibernating 

noun
  • An inferior racing boat, or one who rows in such a boat. 

torporific

adj
  • Inducing torpor; tending to cause apathy or lethargy. 

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