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

'aneurysma' was adopted into Late Latin as 'aneurysma,' then into French as 'anévrisme,' and eventually became the modern English word 'aneurysm.'

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