refectory (n.)youdaoicibaDictYouDict[refectory 词源字典]
"dining hall," especially one in a monastery, early 15c., from Medieval Latin refectorium, from past participle stem of reficere "to remake, restore," from re- (see re-) + facere "to make, do" (see factitious).[refectory etymology, refectory origin, 英语词源]