infirmary (n.)youdaoicibaDictYouDict[infirmary 词源字典]
mid-15c., "sick bay in a monastery," from Medieval Latin infirmaria "a place for the infirm," from Latin infirmus "weak, frail," (see infirm). The common name for a public hospital in 18c. England.[infirmary etymology, infirmary origin, 英语词源]