Zest

n. [Fr. zeste, from Lat. schistus, Gr. σχιστός, split, cleft, divided, from σχίζειν, to split, cleave.]

1Sense 1. A piece of orange or lemon peel, used to give flavor to liquor, or the fine, thin oil that spurts out of it when squeezed.

2Sense 2. Hence, something that gives or enhances a pleasant taste, or the taste itself; an appetizer; hence, keen enjoyment; relish.

Almighty Vanity! to thee they owe Their zest of pleasure, and their balm of woe. Young.

Liberality of disposition and conduct gives the highest zest and relish to social intercourse. Cogan.

3Sense 3. The woody, thick skin inclosing the kernel of a walnut.