A severe headache or pain in the head, particularly used in medical terminology.
From Greek 'kephale' (head) + 'agra' (a seizure or attack). This combines the word for head with a suffix indicating a sudden painful condition, similar to how 'gout' is sometimes called 'podagra.'
This medical term reveals how ancient Greek doctors classified pain—they understood headaches were sudden attacks worthy of their own special name, showing they recognized migraines as distinct from regular head discomfort.
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