Cloche (noun)

1. A bell-shaped cover used to protect plants from frost or cold weather, often made of glass.
2. A woman's close-fitting hat that covers the head and ears, typically made of felt or cloth, and has a round crown and a small brim or no brim at all.

Origin:

From french cloche ("bell"), from latin clocca ("bell").

Examples:

1. The cloche protected the young plants from frost damage.
2. She wore a cloche hat to shield her head from the cold wind.
3. The cloche protected the seedlings from the harsh spring weather.
4. She had a beautiful cloche hat that she always wore to church.
5. The cloche was an essential tool for gardening in cold climates.