'abdominal-bladder' originates from Latin, specifically the word 'abdomen' meaning 'belly' and 'bladder' from Old English 'blǣdre' meaning 'blister or bladder'.

'abdomen' transformed from the Latin word 'abdomen' and 'bladder' from the Old English word 'blǣdre', eventually forming the modern English term 'abdominal-bladder'.

Initially, 'abdomen' meant 'belly' and 'bladder' meant 'blister or bladder', but over time it evolved into its current medical usage referring to a bladder located in the abdominal region.