'acraspedote' originates from Greek, specifically the word 'akraspedos,' where 'a-' meant 'without' and 'kraspedon' meant 'edge' or 'border.'

'akraspedos' transformed into the scientific term 'acraspedote' used in modern taxonomy.

Initially, it meant 'without an edge or border,' but over time it evolved into its current meaning of 'a type of jellyfish without a velum.'