obese vs pyknic

obese

noun
  • A person who is obese. 

adj
  • Extremely overweight, especially: weighing more than 20% (for men) or 25% (for women) over their conventionally ideal weight determined by height and build; or, having a body mass index over 30 kg/m². 

pyknic

noun
  • A short, thickset person characterised by thick neck, large abdomen and relatively short limbs; a endomorph. 

adj
  • short and stout; endomorphic 

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