full dress vs trappings

full dress

noun
  • Clothing worn on formal occasions. 

adj
  • Requiring a full-scale operation with attention to every minute detail. 

trappings

noun
  • Clothing or equipment; that which gives the appearance of something. 

  • Ornamental coverings or harnesses for a horse; caparisons. 

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