cutis vs derma

cutis

noun
  • The true skin or dermis, underlying the epidermis. 

derma

noun
  • The inner layer of the skin. 

  • A Jewish dish of roast or boiled seasoned meat and flour etc. in a casing, especially kishke. 

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