obese vs plus-size

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. 

noun
  • A person who is obese. 

plus-size

adj
  • Overweight. 

  • Designed to fit an overweight person. 

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