'prearrange' originates from the prefix 'pre-' meaning 'before' and the verb 'arrange' from Old French 'arangier', meaning 'to set in order'.

'arangier' transformed into the Middle English word 'arrangen', and eventually became the modern English word 'arrange'.

Initially, it meant 'to set in order', but over time it evolved into its current meaning of 'to plan or organize in advance'.