Modern Usage has transgressed somewhat from the (original definition) - An individual or group of individuals brought to power by a majority vote of the electorate.
For modern usage See: Bush(USA), Mugabe(Zimbabwe), Gordon Brown(UK), Thein Sein (burma),
Mahmoud Ahmadinejad(iran), Vladimir Putin&
Dmitry Medvedev (Russia)
Jalal TALABANI (Iraq) who have all been Democratically Elected in the past few years. Scary isn't it?