Английский разговорный словарь (основной) - effervesce
Effervesce
effervesce
ˌefəˈves v.intr. 1 giveoff bubbles of gas; bubble. 2 (of a person) be lively or energetic. øøeffervescence n. effervescency n. effervescent adj. [L effervescere (as EX-(1), fervere be hot)]