appreciation vs vertu

appreciation and vertu both are nouns.

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

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

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

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