'jingoism' originates from English, specifically the word 'jingo,' which was used in a popular British song during the Russo-Turkish War (1877–1878) to express aggressive patriotism.

'jingo' was used in the phrase 'by jingo' in the song, and eventually became the modern English word 'jingoism' to describe aggressive nationalism.

Initially, it meant 'aggressive patriotism,' and this meaning has largely remained the same in modern usage.