'agitpropist' originates from Russian, specifically the word 'агитпроп', where 'агитация' meant 'agitation' and 'пропаганда' meant 'propaganda'.

'агитпроп' transformed into the English word 'agitprop', and eventually became the modern English word 'agitpropist'.

Initially, it meant 'a person involved in political agitation and propaganda', and this meaning has largely remained the same in modern usage.