MEANING: noun:
1. (In plural, megrims) Low spirits.
2. Whim.
3. Migraine.

ETYMOLOGY: From misreading of in as m in the word migraine. From French migraine, from Latin hemicrania (pain in one side of the head), from Greek hemi- (half) + kranion (skull). Ultimately from the Indo-European root ker- (horn or head), which also gave us unicorn, horn, hornet, rhinoceros, reindeer, carrot, carat, and cerebrate. Earliest documented use: 1440.

HEGRIM - the other guy doesn't feel so good

MEGRAM - a narcissist's billet-doux

MUGRIM - where the lipstick goes