frock vs pallium

frock

noun
  • An outer garment worn by priests and other clericals; a habit. 

  • A sailor's jersey. 

  • An undress regimental coat. 

  • A frog. 

  • A dress, a piece of clothing, which consists of a skirt and a cover for the upper body. 

verb
  • To make (somebody) a cleric. 

  • To clothe (somebody) in a frock. 

  • To grant to an officer the title and uniform of a rank he will soon be promoted to. 

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. 

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