brio

bree-oh, noun

1. enthusiastic vigor; vivacity; liveliness; spirit

Quote:
"Though my judgement was no doubt affected by all the wine we'd consumed, I remember being elated by our performance that night: our inspired spur-of-the-moment dialogue, the actors fleshing out their roles with such brio."
- Gail Godwin

Origin:
Brio is Italian, from Spanish brio or Provencal brio, both of Celtic origin