Mansemat
Gustav Davidson's Dictionary of Angels says that Mansemat comes from "Acts of Philip" with reference to "The Apocryphal New Testament" by M. R. James. You can find the relevant part here: http://gnosis.org/library/actphil.htm
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Oh crap, that book. I need to get that book!
Here's the verse:
13 On reading the letter Ananias rent his clothes and said: Is that deceiver in Athens also? And Mansemat, that is, Satan entered into him. (This is another form of Mastema, the name of Satan in Jubilees and elsewhere.) And he consulted with the lawyers and Pharisees, and they said: Arm thyself and take 500 men and go and at all costs destroy Philip.
Minus the bisecting clarification. Pretty rad, though. Thanks!
