'determinedly' originates from the word 'determine,' which comes from Latin, specifically the word 'determinare,' where 'de-' meant 'off' and 'terminare' meant 'to limit or bound.'

'determinare' transformed into the Old French word 'determiner,' and eventually became the modern English word 'determine' through Middle English.

Initially, it meant 'to set boundaries or limits,' but over time it evolved into its current meaning of 'to decide or resolve firmly.'