'acroamatical' originates from Greek, specifically the word 'akroamatikos,' where 'akroama' meant 'something heard.'

'akroamatikos' transformed into the Latin word 'acroamaticus,' and eventually became the modern English word 'acroamatical.'

Initially, it meant 'something heard or listened to,' but over time it evolved into its current meaning of 'pertaining to esoteric teachings.'