Ostracum, derived from the Greek word "ostrakon," was a type of ancient Athenian ballot that contained the name of a person to be banished or exiled from the city-state for ten years. While ostracism was a democratic process used to prevent any individual from becoming too powerful, the use of synonyms was infrequent. Some alternatives to ostracum include exclusion, expulsion, banishment, dislodging, and proscription. These words share the theme of removal or rejection from a group or society. Of these synonyms, the word "proscription" comes close to capturing the legal and political implications of ostracism as it implies a formal ban or prohibition.