'abdominalian' originates from Latin, specifically the word 'abdomen,' where 'ab-' meant 'away' and 'dom-' referred to 'house.'

'abdomen' transformed into the English word 'abdominalian' to describe creatures with prominent abdomens.

Initially, it meant 'related to the abdomen,' but over time it evolved into its current meaning of 'a member of a group of animals characterized by having a prominent abdomen.'