'uncontrolled' originates from the prefix 'un-' meaning 'not' and the word 'controlled', which comes from the Latin 'contrarotulare', meaning 'to check against a roll'.

'controlled' changed from the Old French word 'contreroller' and eventually became the modern English word 'control'.

Initially, it meant 'to check or verify', but over time it evolved into its current meaning of 'to exercise restraint or direction over'.