Hypsistos, Greco-Roman, was a local tutelary god known from the legion of Bosphorus, ca. 150 BC until 250 AD. As late as the fourth century AD there are mentions in texts of hypsistarti in Cappadocia, who appears to have been unorthodox, Greek-speaking, Jewish fringe sectarians. The word hypsistos, occurring in the in the Septuagint version of the Vetus Testamentum, means "almighty." A.G.H.
Jordan, Michael, Encyclopedia of Gods, New York, Facts On File, Inc. 1993, p. 110