abstersiveyoudaoicibaDictYouDict[abstersive 词源字典]
"Having the quality of cleansing, scouring, or washing away impurities; that purges", Late Middle English; earliest use found in Guy de Chauliac's Grande Chirurgie. As adjective from Middle French abstersif, adjective (French abstersif; 1314 in Old French) and its etymon post-classical Latin abstersivus from classical Latin absters-, past participial stem of abstergēre + -īvus. As noun partly from Middle French abstersif, noun and partly from post-classical Latin abstersiva, use as noun of neuter plural of abstersivus. Compare Spanish abstersivo, Portuguese abstersivo.[abstersive etymology, abstersive origin, 英语词源]