Ebullience is a noun that means a quality of being full of energy; cheerful.
Ebullience is a quality that may be described as ‘bubbling over’ with enthusiasm or joy. So it makes sense that our word of the day would come from the Latin word ebullire (eb ooh LEER ay)which means to ‘bubble out’ or ‘boil.’
Rhonda announced to her co-workers that she was pregnant. That immediately explained the ebullience on her face all week.