D defs.my
Entry 1 sense Webster, 1913

Jacobus

/jək-ōb'-əs/ · Ja·co·bus · IPA /dʒəkˈoʊbəs/
01 n. An English gold coin, of the value of twenty-five shillings sterling, struck in the reign of James I.
pl. Jacobuses ((#))
  1. 1.
    An English gold coin, of the value of twenty-five shillings sterling, struck in the reign of James I.