ebulli- (Latin: to bubble, to bubble up; to boil).
ebullient, ebullience, ebulliency:
1. Bubbling; boiling.
2. Overflowing with enthusiasm, high spirits, etc.; exuberant.
An instrument for indicating the boiling point of liquids.
1. The act of boiling up; sudden outburst; effervescence.
2. An outburst, as of some emotion.