Sabbatianism refers to an ancient Jewish messianic movement that emerged in the seventeenth century. The term is derived from Sabbatai Zevi, a false messiah who claimed to be the long-awaited savior of the Jewish people. As a movement, Sabbatianism was characterized by extreme forms of worship, including ecstatic dance and ritualistic practices. The synonyms for Sabbatianism include Sabetianism, Sabateanism, Zevianism, and Sabbatianic Cult. These terms are used to refer to the same messianic movement, which was eventually suppressed by Jewish authorities and faded into obscurity. Despite its relatively brief existence, Sabbatianism remains a fascinating topic of study for scholars of religion and history.