from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An old Portuguese gold coin bearing a figure of John V of Portugal.
from the GNU version of the Collaborative International Dictionary of English
- n. A Portuguese gold coin of the value of eight dollars, named from the figure of King John which it bears; -- often contracted into joe.
from The Century Dictionary and Cyclopedia
- n. A gold coin (called in Portuguese joão) formerly current in Portugal, worth about $9: probably so called from having been first issued by one of the Portuguese kings named John.
Sorry, no etymologies found.