Can Democracy be 'limited' in its 'political expression'?

Can a Democratic form of government be limited? No, any 'limitation' placed on democracy would render the Government not truly democratic. Can an Autocracy, or Dictatorship, or Plutocracy, or Oligarchy, be limited? Its unlikely because the Top of Government has already established the 'parameters' of its Political power. However, since the power resides at the Top, the Top is certainly free to make whatever changes it wishes. But, the reason I said it was unlikely, is because the locus of power has already been institutionally situated, and hence a change of mind by the Top is not very likely. However, Democracy cannot be restricted or limited because in a Democracy the power is 'granted' to the Top, but its a 'political grant' that emanates from the Bottom. A Government is either a Democracy or its not. There can be no dilution of democratic power, nor of the Freedom and Equality of the Individual at the Bottom. Power emanates from the Bottom and the Individual is assured his/her Freedom and Equality, and that, cannot be encroached upon. Of course, there is always the necessity of compliance with Law, and Law must contour the manner by which the Freedom and Equality is expressed. Law and Order are necessary because you cannot have one without the other. My point is autocracies can be modified to allow more freedoms, because all the power is at the Top, and hence the Top can change, if it so wishes, nevertheless, its very unlikely. Whereas, in a Democracy, the power emanates from the Bottom, and is transferred to the Top, and the Top must insure the Freedom and Equality of all the Individuals at the Bottom. In other words, democracies are governments of the People, by the People, and for the People.