Onoskelis: The Mysterious Demoness of Ancient Lore
Onoskelis is a fascinating figure in the world of demonology, known for her unique and eerie appearance as well as her enigmatic role in ancient lore. Her name, which translates to “she with the ass’s legs” in Greek, hints at her otherworldly and haunting form.
Who is Onoskelis?
Onoskelis is a female demon mentioned in ancient texts, most notably in the Testament of Solomon, an ancient work of demonology attributed to King Solomon. She is portrayed as a seductive yet malevolent spirit who tempts humans and causes discord. Her name, which literally means “she with the ass’s legs,” describes her unusual appearance— a beautiful woman from the waist up but possessing the legs of a donkey. This peculiar combination of beauty and beastliness contributes to her eerie and unsettling nature.
Origin and Historical Background
Onoskelis first appears in The Testament of Solomon, an ancient pseudepigraphic text believed to be written between the 1st and 5th centuries CE. In this work, King Solomon, known for his wisdom and magical abilities, summons and interrogates various demons to learn their names, powers, and ways to counteract them. During his interrogation of Onoskelis, she reveals that she was born from human desire and the cosmic movements of the stars. Her existence is tied to human temptation, specifically lust and deception.
In the Testament, she admits to leading men astray by seducing them and causing infidelity and discord within families. Onoskelis also confesses to strangling children, highlighting her malevolent and dangerous nature. Despite her evil deeds, she is compelled to serve Solomon after being subdued by his magical seal, a recurring motif in the Testament where demons are forced to aid in the construction of Solomon’s Temple.
Appearance and Characteristics
Onoskelis is depicted as a beautiful woman with the lower limbs of a donkey, a striking and unsettling image that emphasizes her dual nature— both alluring and monstrous. Her beauty is meant to deceive and ensnare men, drawing them into sinful desires. The donkey legs symbolize her wild, untamed, and animalistic nature, reinforcing her role as a creature of temptation and chaos.
Her appearance is also symbolic, representing the duality of temptation: the alluring façade of beauty masking the corrupting influence beneath. This duality is a common theme in demonology, where demonic entities often assume attractive forms to deceive and corrupt human souls.
Role and Powers
Onoskelis is primarily associated with lust, deception, and discord. She tempts men, leading them to infidelity and moral corruption. Her influence causes familial conflicts, broken relationships, and societal chaos. In the Testament of Solomon, she admits to targeting both men and children, emphasizing her role as a bringer of suffering and discord.
She also possesses the power of shapeshifting, allowing her to alter her appearance to lure victims. This power of illusion is consistent with her role as a deceiver, enhancing her ability to manipulate human desires.
Symbolism and Cultural Significance
Onoskelis symbolizes the danger of unchecked desires and the consequences of temptation. Her hybrid form—both beautiful and beastly—reflects the deceptive nature of sin, appearing attractive but ultimately leading to corruption and suffering. Her presence in ancient lore serves as a cautionary tale, warning against the perils of succumbing to temptation and moral weakness.
Her association with discord and chaos also ties her to the archetypal trickster figure, a common motif in mythology representing disruption and moral ambiguity. This symbolic role reinforces her status as a complex and multifaceted demoness, embodying the consequences of human folly.

Exorcism and Protection Against Onoskelis
In the Testament of Solomon, King Solomon uses his magical seal to subdue and control Onoskelis, forcing her to aid in the construction of his Temple. The seal of Solomon is a powerful symbol of divine authority and wisdom, capable of binding and commanding demonic entities.
Traditional methods of protection against Onoskelis include ritual prayers, amulets, and exorcisms. In ancient times, invoking divine names and using protective charms were common practices to ward off demonic influences. The Testament of Solomon also emphasizes the power of faith and righteousness as spiritual defenses against demonic temptation.
Conclusion
In demonology, Onoskelis is still a mystery and fascinating person who captures the complicated interaction between beauty and beastliness, seduction, and dishonesty.