Effervescent comes from the Latin word effervescens, meaning “boiling up” or “foaming.” In English, it has been used since the mid-18th century to describe something that is vivacious, merry, lively, or sparkling. Effervescence can be found in many different contexts, from personality and behavior to food and drink. Today, effervescent remains a commonly used word in English, and is often associated with pleasure, excitement, and celebration.