'uncontroversially' originates from the prefix 'un-' meaning 'not' and the word 'controversial,' which comes from the Latin 'controversia,' where 'contra-' meant 'against' and 'versus' meant 'turned.'

'controversia' transformed into the English word 'controversial,' and with the addition of the prefix 'un-' and the suffix '-ly,' it became 'uncontroversially.'

Initially, 'controversial' meant 'subject to debate,' and 'uncontroversially' evolved to mean 'not subject to debate.'