a historical, but obsolete term for a cerebral stroke, most often intracerebral hemorrhage, that was applied to any condition that involved disorientation and/or paralysis
Apoplexy is extreme anger. He has already caused apoplexy with his books on class and on war. an illness in your brain which causes you to suddenly lose your ability to move or think = stroke (apoplexia, from , from apoplessein , from apo- ( APOCALYPSE) + plessein )
[ 'a-p&-"plek-sE ] (noun.) 15th century. Old English poplexye, Late Latin poplexia, apoplexia, from Greek ἀποπληξία (apoplēxia), from ἀποπλήσσειν (apoplēssein) to cripple by a stroke; ἀπό (apo) from + πλήσσειν (plēssein) to strike: compare with French apoplexie. See Plague.