Leotard

Leotard - a close-fitting one-piece garment, made of a stretchy fabric, that covers a person's body from the shoulders to the top of the thighs - typically worn by dancers or people exercising indoors.

This is a word and a garment I not only associate with dancers, but also with an earlier time. I don't hear the word as much these days and perhaps that is a fashion thing or perhaps dance is not in my life much.

"Erika Fasana, 2010" by Alby.1412.
Licensed under CC BY-SA 2.0 via Commons.

The word sounds French, but in checking the origin I find that it is another example of an eponym. The garment is named after a French trapeze artist (not a dancer) named Jules Léotard (1839–70). 

The word and the garment as a fashion trend first appear in the early 20th century.

The leotard is still usually associated with girls and women participating in ballet and gymnastics.

Jules Léotard in the garment that bears his name - Link

Jules designed the one-piece garment so that there would be no loose clothing that could get in the way of his act or jeopardize his safety. His version was tight-fitting with long sleeves and it eventually came to be known by his name.

Leotards are now worn by acrobats, gymnasts, dancers, figure skaters, athletes, actors, wrestlers, and circus performers both as practice garments and performance costumes. 

sample leotard for ballet or gymnastics

They are often worn with ballet skirts on top and with tights or bike shorts as underwear. As a casual garment, a leotard can be worn with a belt, worn as a tight-fitting top with pants, overalls, or short skirts.

There are a plethora of leotards available for women and young girls for ballet, for gymnastics, and as "bodysuits" for everyday wear.

long-sleeved leotard