After 1792 the trappings of Roman republicanism became fashionable, with fasces and axes; and stern ancient patriots like Brutus, Scaevola, and Cato, familiar to all men of education, were much invoked.
The symbol of the Etruscan king's right to execute his subjects was a bundle of rods and an axe: the fasces (from which Mussolini created the Fascisti in the 20th century).
So, fascism essentially meant the Mussolini movement's adoption of the fasces as the symbol of what became known as the Fascist movement.
On March 23, 1919, Mussolini and other war veterans founded in Milan a revolutionary, nationalistic group called the Fasci di Combattimento, named for the ancient Roman symbol of power, the fasces .
That is, they referred to the Roman fasces , which had been the symbol of the Roman legions, marching out to war, and called this ‘Fascism’; but it was actually Synarchism from France.