'pandemic' originates from Greek, specifically the word 'pandēmos,' where 'pan-' meant 'all' and 'dēmos' meant 'people.'

'pandēmos' transformed into the Late Latin word 'pandemicus,' and eventually became the modern English word 'pandemic.'

Initially, it meant 'affecting all people,' and over time it evolved into its current meaning of 'a disease prevalent over a whole country or the world.'