'slogan' originates from Scottish Gaelic, specifically the word 'sluagh-ghairm,' where 'sluagh' meant 'army' and 'gairm' meant 'cry.'

'sluagh-ghairm' transformed into the English word 'slogan' and eventually became the modern English word 'slogan.'

Initially, it meant 'battle cry,' but over time it evolved into its current meaning of 'a memorable phrase used in advertising.'