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The Collaborative International Dictionary
Spriteliness

Spriteful \Sprite"ful\ (-f[usd]l), a., Spritefully \Sprite"ful*ly\, adv., Spriteliness \Sprite"li*ness\ (-l[i^]*n[e^]s), n., Spritely \Sprite"ly\, a., etc. See Sprightful, Sprightfully, Sprightliness, Sprightly, etc.

Wiktionary
spriteliness

n. The quality of being spritely.