'heroically' originates from the Greek word 'hērōikos,' where 'hērōs' meant 'hero.'

'hērōikos' transformed into the Latin word 'heroicus,' and eventually became the modern English word 'heroic,' with 'heroically' as its adverbial form.

Initially, it meant 'pertaining to a hero,' but over time it evolved into its current meaning of 'in a manner characteristic of a hero.'