'reason-based' originates from the combination of 'reason' and the suffix '-based', where 'reason' meant 'a cause, explanation, or justification for an action or event'.

'reason' changed from the Old French word 'raison' and eventually became the modern English word 'reason'.

Initially, 'reason' meant 'a cause or explanation', and over time it evolved into its current meaning of 'logical thinking or rationale'.