'enthrall' originates from Middle English, specifically the word 'enthrallen,' where 'en-' meant 'in' and 'thrall' meant 'slave or bondage.'

'enthrallen' transformed into the modern English word 'enthrall,' and eventually became the adjective 'enthralling.'

Initially, it meant 'to enslave or hold in bondage,' but over time it evolved into its current meaning of 'captivating or holding one's attention completely.'