In a manner relating to or characteristic of epilepsy; describing how something happens in relation to seizures or epileptic conditions.
From 'epileptical' + '-ly' (in the manner of), combining Greek 'epileptikos' (seizing) with the English adverbial suffix.
Medical descriptions using adverbs like this are fascinating because they let doctors describe subtle characteristics—a patient might move 'epileptically' even between seizures, which helps neurologists diagnose the type and severity of the condition.
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