'unversed' originates from the prefix 'un-' meaning 'not' and the word 'versed,' which comes from the Latin 'versatus,' meaning 'experienced or skilled.'

'versatus' transformed into the English word 'versed,' and with the addition of the prefix 'un-,' it became 'unversed.'

Initially, it meant 'not skilled or experienced,' and this meaning has largely remained the same in modern usage.