E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
and in French Méche, Méchant. That the two English words and the two French words should have similar resemblances and similar meanings is a remarkable coincidence, especially as the two adjectives are quite independent of the nouns in their etymology. Wick is the Anglo-Saxon weoce, a rush or reed, but wicked is the Anglo-Saxon wæc or wac, vile. So méche is the Latin \??\-a wick, but méchant is the old French meschæant, unlucky.