cestus vs cummerbund

cestus

noun
  • A leather fighting glove, frequently weighted with metal. 

cummerbund

noun
  • A broad sash, especially one that is pleated lengthwise and worn as an article of formal dress, as around a man's waist together with a tuxedo or dinner jacket. 

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