'uncooperatively' originates from the prefix 'un-' meaning 'not' and the word 'cooperative,' which comes from the Latin 'cooperari,' where 'co-' meant 'together' and 'operari' meant 'to work.'

'cooperari' transformed into the English word 'cooperate,' and with the addition of the prefix 'un-' and the suffix '-ly,' it became 'uncooperatively.'

Initially, it meant 'not working together,' and this meaning has largely remained the same in modern usage.