'allegation' originates from Latin, specifically the word 'allegatio,' where 'al-' meant 'toward' and 'legare' meant 'to send or appoint.'

'allegatio' transformed into the Old French word 'allegation,' and eventually became the modern English word 'allegation' through Middle English.

Initially, it meant 'a formal declaration or statement,' but over time it evolved into its current meaning of 'a claim or assertion without proof.'