What does Shakespeare mean by the word jaded?

In Shakespeare's time, the word "jaded" had a slightly different meaning than it does today. It still referred to a horse that had become tired or worn out from overuse, but it also implied that the horse had been mistreated or neglected.

For example, in "The Taming of the Shrew," Shakespeare describes a character as "A jade, a curst and beastial jade" (Act 3, Scene 2). In this case, the word "jade" suggests not only that the character is tired and worn out, but also that she has been mistreated.