Webster’s Revised Unabridged Dictionary · 1913
Sprightful
Spright′ful (·fụl), a. [Spright sprite + full.] Full of spirit or of life; earnest; vivacious; lively; brisk; nimble; gay. [Obs.] — Spright′ful·ly, adv. [Obs.] Shak.
— Spright′ful·ness, n. [Obs.]
Spoke like a sprightful gentlemen. Shak.
Steeds sprightful as the light. Cowley.