Webster’s Revised Unabridged Dictionary · 1913
Sprightliness
Spright′li·ness (·lĭ·nĕs), n. The quality or state of being sprightly; liveliness; life; briskness; vigor; activity; gayety; vivacity.
In dreams, observe with what a sprightliness and alacrity does she [the soul] exert herself! Addison.