suit of armour vs vestment

suit of armour

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

vestment

noun
  • Clothing. 

  • Any of the special articles of clothing worn by members of the clergy etc., especially a garment worn at the celebration of the Eucharist. 

  • A robe, gown, or other article of clothing worn as an indication of office. 

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