Even then the Greek word entered Muslim vocabulary with little change: democrasi in Persian, dimokraytiyah in Arabic, demokratio in Turkish.
is a rather weak argument, given that the Greek word entered the Anglo vocabulary equally unchanged.
2 hundred years ago, America lived in a democracy based on equality for all men, except blacks and women. We changed, we've altered ourselves to extend democracy to any man who desires it.
I don't think it's IMPOSSIBLE for Islam. I think once it is introduced and they like it, they'll rethink their preconceived notions contained in their religion and change for the better. Or maybe I'm just an idealist republican... :0
You missed the point - the words entered Islam but not the ideas - unlike the west.