oily vs unguinous

oily

adj
  • Relating to or resembling oil. 

  • Excessively friendly or polite but insincere. 

  • Covered with or containing oil. 

noun
  • A marble with an oily lustre. 

  • Oilskins. (waterproof garment) 

unguinous

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

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