It doesn't sound Polish at all, except the 'sky' ending. Are you sure it's not Scottish? I've heard Scots often have 'Mac' or 'Mc' at the beginning of their surnames.
If you're absolutely sure that it's Polish then the closest thing would be 'Makiński' or 'Machiński'.
Ah, I've looked your other thread and it seems that you're sure it's from Poland. In 1800 Poland was partitioned between Russia, Prussia and Austria and Poles were often opressed by the partitioners. It's possible that your ancestors escaped from being sent to Siberia or something like that.