'acclaimer' originates from the Latin word 'acclamare,' where 'ad-' meant 'to' and 'clamare' meant 'to shout or call.'

'acclamare' transformed into the Old French word 'acclamer,' and eventually became the modern English word 'acclaim' through Middle English.

Initially, it meant 'to shout approval,' but over time it evolved into its current meaning of 'to praise or applaud publicly.'