Noah Webster
Sprightful
SPRIGHTFUL, adjective [This word seems to be formed from the root of sprag, a local word, pronounced in America spry. It belongs to the family of spring and sprig.] Lively; brisk; nimble; vigorous; gay.
Spoke like a sprightful noble gentleman.
Steeds sprightful as the light.
[This word is Little Used in America. We use sprightly in the same sense.]