appreciation vs virtu

appreciation and virtu both are nouns.

Word	Noun	Adjective	Verb	Adverb
appreciation	Yes	No	No	No
virtu	Yes	No	No	No

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

Other hyponyms of appreciation include connoisseurship, vertu, style, trend, vogue, delicacy, discretion, culture.

appreciation (noun)	virtu (noun)
a favorable judgment	objet d'art collectively (especially fine antiques)
an increase in price or value	artistic quality
understanding of the nature or meaning or quality or magnitude of something	love of or taste for fine objects of art
delicate discrimination (especially of esthetic values)
an expression of gratitude