'aneurysmal' originates from the word 'aneurysm,' which comes 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 English word 'aneurysm.' The adjective form 'aneurysmal' was later derived from 'aneurysm.'

Initially, it referred specifically to the medical condition of a blood vessel bulge, and the adjective form now describes anything relating to or resembling an aneurysm.