'arterionecrosis' originates from New Latin/modern medical formation, combining the prefix 'arterio-' (from Latin 'arteria' meaning 'artery') and the Greek-derived element 'necrosis' (from Greek 'nékrosis' meaning 'death').

'arterionecrosis' was formed in modern medical nomenclature by compounding 'arterio-' + 'necrosis' (New Latin/modern formation) and entered English usage through medical literature; it did not derive from a distinct Middle English form.

The component parts originally meant 'artery' and 'death' respectively; together in medical usage they specifically denote 'death of arterial tissue' (a specialized sense of 'necrosis').