tracksuit vs workwear

tracksuit

noun
  • A garment, usually consisting of a top and trousers (commonly known as tracksuit bottoms) worn as an outer layer by participants in sporting events such as athletics. The tracksuit is usually designed to be easily removed or replaced, before or after competing. Tracksuits have also been adopted in some cultures as leisurewear. 

workwear

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

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