frippery vs white tie

frippery

noun
  • Ostentation, as in fancy clothing. 

  • Hence: secondhand finery; cheap and tawdry decoration; affected elegance. 

  • Useless things; trifles. 

white tie

noun
  • The most formal kind of eveningwear for men, consisting of an evening tailcoat, trousers with strips of braid down the side seams, white stiff-fronted shirt, white bow tie and waistcoat with or without sash. 

  • A dress code specifying white tie for men and ball gown or evening dress for women, or, alternatively, full military dress or national costume. 

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