'uncontrol' originates from the prefix 'un-' meaning 'not' or 'opposite of' combined with 'control', which comes from the Latin 'contrarotulare', meaning 'to check against a list'.

'control' evolved from the Old French 'contrerole', which was derived from the Latin 'contrarotulare'. The prefix 'un-' was added in modern English to form 'uncontrol'.

Initially, 'control' meant 'to check against a list', but over time it evolved to mean 'to exercise restraint or direction over'. 'Uncontrol' was formed to mean the opposite.