matron (n.)youdaoicibaDictYouDict[matron 词源字典]
late 14c., "married woman" (usually one of rank), from Old French matrone "married woman; elderly lady; patroness; midwife," and directly from Latin matrona "married woman, wife, matron," from mater (genitive matris) "mother" (see mother (n.1)). Sense of "female manager of a school, hospital, etc." first recorded 1550s.[matron etymology, matron origin, 英语词源]