horsehair
noun
- long, coarse hair growing on the manes and tails of horses
Wiktionary
noun
Etymology: From Middle English hors her, horshere, hors-here, hors heer (also hors-hore), equivalent to horse + hair. Compare Old Norse hross-hár (“horsehair”).
- The hair of a horse, especially from the mane and tail, used for upholstery.
- A fabric made from this.