business suit vs habiliment

business suit

noun
  • A plain, formal matching jacket and trousers (or skirt), as worn by office workers. 

habiliment

noun
  • Clothes, especially clothing appropriate for someone's job, status, or to an occasion. 

  • Equipment or furnishings characteristic of a place or being; trappings. 

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