Webster's Revised Unabridged Dictionary · 1913

Scudo

Scudo , noun

[Italian, a crown, a dollar, a shield, from Latin scutum a shield. Compare Scute.]

(a)
(Commerce) A silver coin, and money of account, used in Italy and Sicily, varying in value, in different parts, but worth about 4 shillings sterling, or about 96 cents; also, a gold coin worth about the same.
(b)
(Commerce) A gold coin of Rome, worth 64 shillings 11 pence sterling, or about $ 15.70.