kitchenyoudaoicibaDictYouDict[kitchen 词源字典]
kitchen: [OE] The Latin word for ‘kitchen’ was coquīna, a derivative of the verb coquere ‘cook’ (ultimate source of English cook, culinary, kiln, precocious, etc). It had a colloquial variant, *cocīna, which spread far and wide throughout the Roman empire. In French it became cuisine (borrowed by English in the 18th century), while prehistoric West Germanic took it over as *kocina. This has subsequently become German küche, Dutch keuken, and English kitchen – etymologically, a room where one ‘cooks’.
=> apricot, cook, culinary, kiln, precocious[kitchen etymology, kitchen origin, 英语词源]
kitchen (n.)youdaoicibaDictYouDict
c. 1200, from Old English cycene, from Proto-Germanic *kokina (cognates: Middle Dutch cökene, Old High German chuhhina, German Küche, Danish kjøkken), probably borrowed from Vulgar Latin *cocina (source also of French cuisine, Spanish cocina), variant of Latin coquina "kitchen," from fem. of coquinus "of cooks," from coquus "cook," from coquere "to cook" (see cook (n.)).

The Old English word might be directly from Vulgar Latin. Kitchen cabinet "informal but powerful set of advisors" is American English slang, 1832, originally in reference to administration of President Andrew Jackson. Kitchen midden (1863) in archaeology translates Danish kjøkken mødding. Surname Kitchener ("one in charge of a monastic kitchen") is from early 14c. Old English also had cycenðenung "service in the kitchen."