jacobus (d???k??b?s) n, pl -busesan English gold coin minted in the reign of James I[C17: from Late Latin: James]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014