'aigialosaur' originates from Greek, specifically the word 'aigialos,' meaning 'shore,' and 'sauros,' meaning 'lizard.'

'aigialosaur' was derived from the Greek words 'aigialos' and 'sauros,' and eventually became the modern English term 'aigialosaur.'

Initially, it meant 'shore lizard,' referring to its habitat, and this meaning has largely remained the same in modern usage.