A "cook" in French is "cuisinier" feminine "cuisiniere." As Florian observes so eymologically, "coq" is the French word for " rooster," which, by the way, simply means "one who roosts." It is a euphemism to replace the original English word "cock," since that term became a common slang word for the membrum virile. The word "cock" means the masculine bird and is still used in names like "peacock" and "woodcock."
Surfer seriously injured in Australian shark attack (AP)
from the article: Be Merry / 'Tis the season for a drunken chicken