'acetylator' originates from the word 'acetyl,' which is derived from the Latin word 'acetum,' meaning 'vinegar,' combined with the suffix '-ator,' indicating an agent or something that performs an action.

'acetyl' transformed from the Latin word 'acetum' and eventually became part of the modern English word 'acetylator.'

Initially, it referred to the process of adding an acetyl group, but over time it evolved to refer to the agent or enzyme that performs this action.