Complex sentence: It is possible that the name is a portmanteau of "Nasoraean" and "Essenes," and the retention of the Hebrew form shows that their beliefs may represent the oldest stage of the Gnosticism.
Split into simpler sentences: It is possible that the name is a portmanteau of "Nasoraean" and "Essenes". Hippolytus "Philosophumena" 5,1 The retention of the Hebrew name shows that their beliefs may represent the oldest stage of the Gnosticism.