'justification' originates from Latin, specifically the word 'justificatio,' where 'justus' meant 'just' and 'facere' meant 'to make.'

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

Initially, it meant 'the act of making just or right,' but over time it evolved into its current meaning of 'reasons or explanations given to show that something is right or reasonable.'