sprite vs water sprite

sprite and water sprite both are nouns.

Word	Noun	Adjective	Verb	Adverb
sprite	Yes	No	No	No
water sprite	Yes	No	No	No

As nouns, water sprite is a hyponym of sprite; that is, water sprite is a word with a more specific, narrower meaning than sprite:

sprite (noun)	water sprite (noun)
a small being, human in form, playful and having magical powers	a fairy that inhabits water
	aquatic fern of tropical America often used in aquariums