wordwind, i'm afraid you are out of luck.. if i may quote what i found somewhere:
Touching the derivation of the name Macedonia, I confess myself, with sorrow, equally at fault. Among a multitude of opinions upon this delicate point- some acute, some learned, some sufficiently the reverse -- I am able to select nothing which ought to be considered satisfactory.
oh well.. i wouldn't be surprised if macedonian wouldn't know it themselves..