'idolizer' originates from Late Latin, specifically the word 'idolizare', where the root 'idol' comes from Greek 'eidolon' meaning 'image' and the suffix '-ize' meant 'to make or treat as'.

'idolizer' changed from Old French word 'idoliser' (from Late Latin 'idolizare') and eventually became the modern English word 'idolizer'.

Initially, it meant 'to worship or treat an image as a god', but over time it evolved into its current meaning of 'a person who admires or worships someone excessively'.