Good question! Where does such a name come from? I suppose the same place that Narnia came from or Quidditch, or Silmarillion, or Tokay. “What’s in a name?” Shakespeare said. Most names in reality have some sort of provenance: Native American, Anglo-Saxon, Semitic, Celtic etc. Fantasy worlds are different. Aedistamen came from the same black hole that Dune came from, and has no other provenance except that it rhymes with Tutenkhamen!  Amen, to that! (to read more, just click on the link and go to the HHP Blog) http://myhelpinghandspress.blogspot.ca/2015/08/readers-have-been-asking-tony-hilling.html#.Vc9lXPlViko