The Collaborative International Dictionary
Sprightfulness
Sprightful \Spright"ful\ (-f[usd]l), a. [Spright sprite + full.]
Full of spirit or of life; spirited; earnest; vivacious;
lively; brisk; nimble; gay. [Obs.] -- Spright"ful*ly, adv.
[Obs.]
--Shak.
Spoke like a sprightful noble gentleman.
--Shak.
Steeds sprightful as the light.
--Cowley.
Wiktionary
sprightfulness
n. (context rare English) The quality of being sprightful