scudo

Borrowed from Italian scudo (“a crown, a dollar, a shield”), from Latin scutum (“a shield”). Compare the doublets scute, escudo, scutum, and écu.

1historicalA silver coin and unit of currency of various Italian states from the 16th to the 19th centuries.
2A former unit of currency in Malta, now the official currency of the Sovereign Military Order of Malta.
3historicalA unit of currency in 19th-century Bolivia, equal to 16 soles.