unguinous vs well-covered

unguinous

adj
  • Consisting of, or resembling, fat or oil; unctuous; oleaginous. 

well-covered

adj
  • Fat, corpulent, full-figured. 

  • Amply equipped or provisioned, especially with respect to a place where food is served. 

How often have the words unguinous and well-covered occurred in a corpus of books? (source: Google Ngram Viewer )