'aneurysm' originates from Greek, specifically the word 'aneurysma,' where 'ana-' meant 'up' and 'eurys' meant 'wide.'

'aneurysma' changed from Latin 'aneurysma' and Old French 'aneurisme,' and eventually became the modern English word 'aneurysm.'

Initially, it meant 'a widening or dilation,' but over time it evolved into its current medical meaning of 'an abnormal bulge in a blood vessel.'