noun Usually leg warmers.
a footless, stockinglike knitted covering for the leg, usually worn over tights, trousers, boots, etc., for warmth, as in a dance class or while exercising, or as a fashion accessory.
Origin of leg warmer
First recorded in 1970–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Online Etymology Dictionary, © 2010 Douglas Harper