'allopathy' originates from Greek, specifically the word 'allopatheia,' where 'allo-' meant 'other' and 'patheia' meant 'suffering.'

'allopatheia' transformed into the German word 'Allopathie,' and eventually became the modern English word 'allopathy.'

Initially, it meant 'treatment of disease by inducing a condition different from the disease,' and this meaning has largely remained the same in modern usage.