'uncomplicated' originates from the prefix 'un-' meaning 'not' and the word 'complicated', which comes from Latin 'complicatus', where 'com-' meant 'together' and 'plicare' meant 'to fold'.

'complicatus' transformed into the French word 'compliquer', and eventually became the modern English word 'complicated', with 'un-' added to form 'uncomplicated'.

Initially, 'complicatus' meant 'folded together', but over time it evolved into its current meaning of 'not difficult or complex'.