'acoasma' originates from Greek, specifically the word 'akoasma,' where 'akouein' meant 'to hear.'

'akoasma' changed from the Greek word 'akoasma' and eventually became the modern English word 'acoasma'.

Initially, it meant 'a sound heard,' but over time it evolved into its current meaning of 'a nonverbal auditory hallucination.'