'remarkably' originates from the word 'remarkable,' which comes from the French word 'remarquable,' where 're-' meant 'again' and 'marquer' meant 'to mark.'

'remarquable' transformed into the English word 'remarkable,' and eventually became the adverb 'remarkably.'

Initially, it meant 'worthy of being remarked upon,' and this meaning has largely remained the same in modern usage.