Rare

Rare - (Webster's 1828 Dictionary)

RARE, a. [L. rarus, thin.]

1. Uncommon; not frequent; as a rare event; a rare phenomenon.

2. Unusually excellent; valuable to a degree seldom found.

Rare work, all fill'd with terror and delight.

Above the rest I judge one beauty rare.

3. Thinly scattered.

4. Thin; porous; not dense; as a rare and attenuate substance.

Water is nineteen times lighter and by consequence nineteen times rarer than gold.

5. Nearly raw; imperfectly roasted or boiled; as rare beef or mutton; eggs roasted rare.