'acrophonic' originates from Greek, specifically the word 'akrophōnos,' where 'akro-' meant 'top' or 'beginning' and 'phōnē' meant 'sound.'

'akrophōnos' transformed into the English word 'acrophonic' through Latin influence.

Initially, it meant 'related to the initial sound,' and this meaning has largely remained the same in modern usage.