'acrosarcum' originates from Greek, specifically the word 'akros' meaning 'topmost' and 'sarkos' meaning 'flesh'.

'akros' and 'sarkos' combined in Greek to form 'acrosarcum', which was adopted into scientific terminology in English.

Initially, it referred to the 'topmost flesh' in Greek, but in scientific usage, it evolved to mean the outer layer of certain organisms.