The hemiobol was a fractional coin used in ancient Greece, worth half of an obol, one of the smaller denominations in the Greek monetary system. The term “hemiobol” comes from the Greek words “hemi-” meaning “half” and “obol”, which referred to a smaller coin that was used in everyday transactions. The hemiobol, therefore, represented a value that was even more modest than the obol, making it a convenient unit for the purchase of inexpensive items.