exuberance (n.) Look up exuberance at Dictionary.com
1630s, "an overflowing," from French exubérance (16c.), from Late Latin exuberantia "superabundance," abstract noun from exuberare "be abundant, grow luxuriously" (see exuberant). Usually figurative in English, especially of joy, happiness, etc. Exuberancy attested from 1610s.