early 14c., panterie, pantre, "a storeroom or closet, especially for bread," from Anglo-French panetrie (late 13c. in surnames; Old French paneterie) "bread room" and directly from Medieval Latin panataria "office or room of a servant who has charge of food" ("bread"), from Latin panis "bread," from PIE root *pa- "to feed." The sense in English soon evolved so that the word's roots in "bread" were no longer felt and it came to be used of any closet for provisions generally or where plates and knives are cleaned.