Webster’s Revised Unabridged Dictionary · 1913
Virtu
Vir·tu′, n. [It. virtù virtue, excellence, from L. virtus. See Virtue.] A love of the fine arts; a taste for curiosities. J. Spence.
An article, or piece, of virtu, an object of art or antiquity; a curiosity, such as those found in museums or private collections.
I had thoughts, in my chambers to place it in view, To be shown to my friends as a piece of virtù. Goldsmith.