habiliment vs workwear

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. 

workwear

noun
  • Clothes designed to be worn while working, especially in a physically demanding job. 

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