What is the origin of shivaree?

Shivaree “a mock serenade with noisemakers” is of obscure origin, though there is a general prevailing theory. Much like recent Word of the Day shivoo, which we learned about in June, shivaree is likely a corruption of the French term charivari. Charivari is also of obscure origin but may derive, via Late Latin carībaria “headache,” from Ancient Greek karēbaría, equivalent to kárā or kárē “head,” barýs “heavy,” and the abstract noun suffix -ía. The logic is that a noisy, boisterous celebration would cause quite the headache! An alternative theory is that shivaree, again like shivoo, derives instead from the French phrase chez vous “at your home.” Shivaree was first recorded in English in the early 1800s.