accouterment vs suit of armour

accouterment

noun
  • An article of clothing or equipment, in particular when used as an accessory. 

  • An identifying yet superficial characteristic. 

  • A soldier's equipment, other than weapons and uniform. 

suit of armour

noun
  • A collection of garments, usually made of metal, worn over the body for protection in battle from weapons. 

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