The Greek word ara can mean a prayer, an imprecation or a curse, depending on its context, while its plural, arai, can refer to curses spoken or invoked against another person. Greek poetry sometimes treats these curses as powers with a presence of their own, able to represent the claims of the wronged and the consequences of an offence. When writers refer to the Arae as supernatural figures, however, the surviving evidence does not establish a separate mythology as detailed as that of the Erinyes. Their identity lies at the meeting point between a human utterance, the divine authority to which it appeals and the frightening prospect that the words may be fulfilled.

The Arae are most closely associated with the Erinyes, whose familiar responsibilities include avenging kindred blood, responding to violations of family relationships and punishing perjury. It is tempting to make the Arae independent daughters of Nyx, the primordial goddess of Night, because Aeschylus calls the Erinyes daughters of Night and also calls them Curses. Yet that passage does not provide an independently attested birth story for a second group of spirits. Nor do the ancient texts establish a fixed number of Arae comparable to the later familiar names Alecto, Megaera and Tisiphone among the Erinyes. The connection is important, but it cannot be turned into a separate genealogy without adding a certainty that the sources do not supply.

A revealing example outside the best-known tragedies survives in Bacchylides, fragment 20a, transmitted by Oxyrhynchus Papyrus 1361. The surviving passage describes a daughter who has been confined indoors by her father and prevented from marrying, even as she grows older. Angry at her treatment, she appeals to the Arae beneath the earth and wishes a bitter old age upon him. This brief account places curses within the difficulties of an ordinary household rather than on a battlefield or in a royal dynasty. The preserved lines record her appeal, not a scene in which the Arae appear or fulfil her wish, and they do not name the daughter or provide a narrative of the spirits' subsequent actions.

The family of Agamemnon offers a more elaborate tragic setting. In Aeschylus' Libation Bearers, Agamemnon has been murdered by his wife Clytemnestra and her lover Aegisthus, leaving his children Orestes and Electra to struggle with their father's death. As the siblings and the chorus gather at Agamemnon's tomb, the chorus describes spilled blood summoning an Erinys, and Orestes immediately addresses the potent Curses of the slain. The sequence, in lines 400–405, places the Erinys and the Arae next to one another in the language of vengeance, but does not stage two independently acting bands of goddesses. Orestes appeals to the powers below while confronting the demand to avenge his father, a decision that will later expose him to the Erinyes for killing his mother.

The same play makes the uncertainty of a curse especially vivid when Clytemnestra hears of Aegisthus' death. She speaks of the Curse that haunts the household and strikes from a distance, bringing ruin upon those she loves. Her words point to the destructive inheritance of the House of Atreus, where one act of revenge can make the next appear necessary. Later, as Orestes prepares to kill her, she warns him of the avenging hounds that a mother's death will unleash, while he asks how he could evade those of his father if he abandoned the deed. In this exchange, curse and vengeance are not separate episodes with tidy conclusions; they are conflicting claims that cannot both be satisfied.

Sophocles' Electra provides a particularly useful comparison. At approximately lines 110–116, Electra addresses the powers of the Underworld, invokes a mighty Curse in the singular and calls upon the Erinyes to avenge her father Agamemnon. Because the Curse and the Erinyes are named in the same appeal, the wording permits a distinction between an imprecation and the divine avengers who may answer it. Yet it does not prove that an independent society of Arae existed with a separate temple, hierarchy or set of named members. Greek tragic language could bring related divine forces together without fixing their identities for every other myth.

The clearest explicit identification comes in Aeschylus' Eumenides, the final play of the Oresteia, first performed in 458 BCE. When Athena asks the frightening beings pursuing Orestes who they are, the Erinyes identify themselves as children of Night and explain that they are called Curses in their dwellings beneath the earth, at lines 415–417. Here Arae is not the name of a second group who accompanies the Erinyes: it is a designation the Erinyes apply to themselves. Their pursuit concerns Orestes' killing of Clytemnestra, and Athena eventually arranges a trial on the Areopagus. After his acquittal, she persuades the angry goddesses to accept honours in Athens, where their threatening powers can coexist with civic order. This development belongs to the mythic and religious history of the Erinyes, not to a separately attested transformation of one group called Arae into another called Eumenides.

Another major example appears in Aeschylus' Seven Against Thebes, where the house of Oedipus is threatened by a curse that turns his sons Eteocles and Polynices against one another. Early in the play, at approximately line 69, Eteocles invokes Zeus, Earth, the city's protecting gods and the Curse connected with his father's Erinys. Significantly, he asks these powers not to allow Thebes and its households to be destroyed by the besieging army. As the conflict develops, he recognises the force of Oedipus' maledictions, and the chorus fears that the father's Erinys will bring them to fulfilment. When the brothers kill one another at the seventh gate, the chorus describes the Curses raising their cry over a devastated family. The tragedy thus presents a closely connected language of curse, vengeance and inherited wrongdoing without requiring each term to denote a separate class of supernatural beings.

The distinction between calling down a curse and imagining its enforcement matters beyond tragedy. Greek prayers could request harm against an enemy, and curses might also serve as warnings attached to promises, oaths or forbidden conduct. Such speech was understood within social relationships in which ordinary legal or personal remedies were not always available. A curse could give voice to bereavement, frustration or a demand for justice, though ancient texts do not promise that every imprecation was automatically carried out. Even where a curse was personified, its authority depended on the situation and the gods or powers invoked rather than on a universal rule that every angry utterance acquired an independent spirit.

Archaeological finds add a related but distinct dimension. Across the Greek world, people inscribed binding spells on thin sheets of lead, sometimes folding or piercing the tablets and placing them in graves, wells or other locations associated with hidden powers. These objects are often called curse tablets today, but the Greek term katadesmos, a binding spell, should not be treated as a simple synonym for every literary ara. Modern scholarship stresses the difference between spoken imprecations and the particular practices of binding. A written tablet and nail can therefore serve as modern educational imagery for the wider world of Greek cursing, but no ancient source establishes the note-and-nail combination as a personal emblem of the Arae.

Later Greek and Roman authors continued to imagine avenging powers responding to crime and hostile prayer. Latin Dirae and Furiae can resemble the Erinyes and sometimes occupy a comparable role, particularly in works such as Virgil's Aeneid, but they should not be presented as exact Roman equivalents of a separately established group of Arae. Dido's terrible words against Aeneas likewise show how a curse could shape an epic's moral and political future without supplying a new episode in the Arae's personal mythology. The comparison is useful when it illustrates the endurance of cursing as a literary force; it becomes misleading when it transforms resemblance into direct identity.

The Arae consequently deserve their own Mythopouch entry, not because they can be given a complete biography distinct from the Erinyes, but because the personification of a curse is an important idea in its own right. Bacchylides records an appeal to the underworld Arae, Sophocles places a personified Curse beside the Erinyes, and Aeschylus at other moments calls the Erinyes Arae themselves. Together these examples show a flexible ancient tradition in which an uttered wrong could become a claim upon the unseen world, while the boundary between the curse and the power enforcing it remained open to interpretation.