jahi

Jahi is the Avestan language name of Zoroastrianism's demoness of "lasciviousness." As a hypostatic entity, Jahi is variously interpreted as "hussy," "rake," "libertine," "courtesan" and "one who leads a licentious life." Her standard epithet is "the Whore." In Zoroastrian tradition, Jahi appears as Middle Persian Jeh (Jēh, J̌ēh), characterized as the consort of Ahriman and the cause of the menstrual cycle.
See more at Wikipedia.org...