from The Century Dictionary and Cyclopedia
- n. Same as obolus and obol.
- n. In modern Greek currency, a piece of 5 lepta.
Sorry, no etymologies found.
And noble, a coin of France and, later, of England, originated because of association with Latin nobilis, whereas its true origin was in Greek obolos, rendered as un obol (os).
The book includes this, "Inflationary": "In the old days you would have been charged one obolos to cross.