'conciliation' originates from Latin, specifically the word 'conciliatio,' where 'con-' meant 'together' and 'calare' meant 'to call.'

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

Initially, it meant 'to bring together or unite,' but over time it evolved into its current meaning of 'stopping someone from being angry.'