'jingoistic' originates from the English word 'jingoism', which was derived from the British music hall song 'By Jingo', where 'jingo' was used as a euphemism for 'Jesus'.

'jingoism' was coined in the late 19th century and evolved into the adjective 'jingoistic' to describe attitudes or policies.

Initially, it referred to a specific type of aggressive patriotism, and this meaning has largely remained the same in modern usage.