June 2009 (UTC)

Yes, that etymology does trace to linguistic literature, though it's not often quoted. I don't know if Poseidon is included, but Mygdonia I've seen it included, with a possible meaning of "swampy/wet land" (PIE *meug-, "wet, slippery"; the river mouths & lakes there or that were there etc.), or so I remember. Macedon on its own didn't look like much of a case and Poseidon as "earthman" sounds like a wild speculation, but Mygdonia does seem to fit well.   21:36, 24