'aidant' originates from Old French, specifically the word 'aidant', where 'aid-' meant 'help' and '-ant' was a suffix indicating an agent or participant.

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

Initially, it meant 'providing help or assistance', and this meaning has largely remained the same in modern usage.