pallium vs wrapper

pallium

noun
  • A large cloak worn by Greek philosophers and teachers. 

  • The mantle of a mollusc. 

  • A woolen liturgical vestment resembling a collar and worn over the chasuble in the Western Christian liturgical tradition, conferred on archbishops by the Pope, equivalent to the Eastern Christian omophorion. 

  • The cerebral cortex. 

wrapper

noun
  • An outer garment; a loose robe or dressing gown. 

  • Something that is wrapped around something else as a cover or protection: a wrapping. 

  • One who, or that which, wraps. 

  • A construct, such as a class or module, that serves to mediate access to another. 

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