'infatuated' originates from Latin, specifically the word 'infatuatus,' where 'in-' meant 'into' and 'fatuus' meant 'foolish.'

'infatuatus' transformed into the French word 'infatué,' and eventually became the modern English word 'infatuated' through Middle English.

Initially, it meant 'to make foolish or to inspire with a foolish passion,' but over time it evolved into its current meaning of 'possessed with an intense but short-lived passion.'