'unbottle' originates from the prefix 'un-' meaning 'not' or 'reverse' and the word 'bottle', which comes from Old French 'bouteille', meaning 'bottle'.

'bouteille' transformed into the Middle English word 'botel', and eventually became the modern English word 'bottle'.

Initially, 'bottle' meant a container for liquids, and 'unbottle' evolved to mean removing something from such a container.