'alliterator' originates from the Latin word 'alliteratio', where 'ad-' meant 'to' and 'litera' meant 'letter'.

'alliteratio' transformed into the English word 'alliteration', and eventually became the modern English word 'alliterator'.

Initially, it meant 'the act of repeating the same letter', but over time it evolved into its current meaning of 'a person who uses alliteration'.