DUCAT, noun [from duke.] A coin of several countries in Europe, struck in the dominions of a duke. It is of silver or gold. The silver ducat is generally of the value of four shillings and sixpence sterling, equal to an American dollar, or to a French crown, and the gold ducat of twice the value.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI