Hegemony
In the 19th century, hegemony came to denote the "Social or cultural predominance or ascendancy; predominance by one group within a society or milieu". Later, it could be used to mean "a group or regime which exerts undue influence within a society". Also, it could be used for the geopolitical and the cultural predominance of one country over others, from which was derived "hegemonism", as in the idea that the Great Powers meant to establish European hegemony over Asia and Africa.
Power (social and political)
In the Marxist tradition, the Italian writer Antonio Gramsci elaborated the role of ideology in creating a cultural hegemony, which becomes a means of bolstering the power of capitalism and of the nation-state. Drawing on Niccolò Machiavelli in The Prince, and trying to understand why there had been no Communist revolution in Western Europe, while it was claimed there had been one in Russia, Gramsci conceptualised this hegemony as a centaur, consisting of two halves. The back end, the beast, represented the more classic, material image of power, power through coercion, through brute force, be it physical or economic. But the capitalist hegemony, he argued, depended even more strongly on the front end, the human face, which projected power through 'consent'. In Russia, this power was lacking, allowing for a revolution. However, in Western Europe, specifically in Italy, capitalism had succeeded in exercising "consensual" power, convincing the working classes that their interests were the same as those of capitalists. In this way revolution had been avoided.