Meaning

noun a severe recurring vascular headache; occurs more frequently in women than men

originFirst appears c. 1425. A respelling (following French) of the late 14th century Middle English megrim, from the 13th century Old French migraigne, from Vulgar Latin pronunciation of Latin hemicrania (“a pain in one half of the head”), from Ancient Greek ἡμικρανία (hēmikranía), from ἡμι- (hēmi-, “hemi-, half”) + κρανίον (kraníon, “the skull”) (whence also cranium), a calque of Egyptian gs-tp (“a…

Etymology from Wiktionary, CC BY-SA 3.0