Webster's Revised Unabridged Dictionary · 1913

Ridotto

Ridotto , noun

[Italian, from Late Latin reductus a retreat. See Redoubt.]

1.
A favorite Italian public entertainment, consisting of music and dancing, -- held generally on fast eves. — Brande & C
There are to be ridottos at guinea tickets. — Walpole
2.
(Music) An arrangement or abridgment of a piece from the full score.

Ridotto , intransitive verb

To hold ridottos. [Rare] — J. G. Cooper