morbific vs nauseous

morbific

adj
  • That causes disease; sickening, pathogenic. 

  • Pertaining to or caused by disease; diseased. 

nauseous

adj
  • Causing nausea; sickening or disgusting. 

  • Afflicted with nausea; sick. 

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