'agglutinationist' originates from the Latin word 'agglutinare,' where 'ad-' meant 'to' and 'glutinare' meant 'to glue.'

'agglutinare' transformed into the French word 'agglutiner,' and eventually became the modern English word 'agglutination' through Middle English.

Initially, it meant 'to glue together,' but over time it evolved into its current meaning of 'the process of forming words by combining morphemes.'