\Scu"do\, n.; pl. {Scudi}. [It., a crown, a dollar, a
shield, fr. L. scutum a shield. Cf. {Scute}.] (Com.)
(a) 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) A gold coin of Rome, worth 64 shillings 11 pence
    sterling, or about $ 15.70.