'undistributable' originates from the prefix 'un-' meaning 'not' and the word 'distributable', which comes from the Latin 'distribuere', meaning 'to divide or allocate'.

'distribuere' transformed into the Old French word 'distribuer', and eventually became the modern English word 'distribute'. The prefix 'un-' was added to form 'undistributable'.

Initially, 'distribute' meant 'to divide or allocate', and 'undistributable' has retained the meaning of 'not able to be divided or allocated'.