Effervescent (adjective)

1. Having the property of bubbling or fizzing.
2. Full of energy and enthusiasm.
3. Having a lively and excited attitude.

Origin:

From the latin word "effervescere" meaning "to bubble up" which comes from "ex-" meaning "out of" and "fervescere" meaning "to boil". it entered the english language in the 18th century.

Examples:

1. The champagne was effervescent.
2. She was effervescent and always had a positive attitude.
3. The party was effervescent with excitement.
4. The effervescent water had a pleasant taste.
5. His effervescent personality made him a joy to be around.