'acidifier' originates from the Latin word 'acidus,' meaning 'sour' or 'sharp,' combined with the suffix '-ifier,' which indicates an agent or means of action.

'acidus' transformed into the French word 'acidifier,' and eventually became the modern English word 'acidifier.'

Initially, it meant 'to make sour,' but over time it evolved into its current meaning of 'a substance that increases acidity.'