derivation of "kitchen"?

Answer 1

It comes from a Germanic word meaning "to cook."

Also derived from this root are our words "cook" and "cake."

Answer 2

[Middle English kichene, from Old English cycene, probably from Vulgar Latin *cocīna, from Late Latin coquīna, from feminine of Latin coquīnus, of cooking, from coquus, cook, from coquere, to cook; see pekw- in Indo-European roots.]