noun

• A silver coin minted in Ancient Greece, valued at a sixth of a drachma.
• (historical) A unit of weight, equal to one-sixth of a drachma.
• Alternative form of obelus [(historical) A symbol resembling a horizontal line (–), sometimes together with one or two dots (for example, ⨪ or ÷), which was used in ancient manuscripts and texts to mark a word or passage as doubtful or spurious, or redundant; an obelisk.]