spice vs piquantness

spice and piquantness both are nouns.

Word	Noun	Adjective	Verb	Adverb
spice	Yes	No	Yes	No
piquantness	Yes	No	No	No

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

spice (noun)	piquantness (noun)
the property of being seasoned with spice and so highly flavored	a tart spicy quality
any of a variety of pungent aromatic vegetable substances used for flavoring food	the quality of being agreeably stimulating or mentally exciting
aromatic substances of vegetable origin used as a preservative

spice (verb)	piquantness (verb)
make more interesting or flavorful
add herbs or spices to