'acroasis' originates from Greek, specifically the word 'ἀκρόασις' (akróasis), where 'ἀκροάομαι' (akroáomai) meant 'to listen.'

'ἀκρόασις' transformed into the Latin word 'acroasis,' and eventually became the modern English word 'acroasis.'

Initially, it meant 'the act of listening,' but over time it evolved into its current meaning of 'a formal lecture or presentation.'