asperse (v.)youdaoicibaDictYouDict[asperse 词源字典]
late 15c., "to besprinkle," from Latin aspersus, past participle of aspergere "besprinkle, bespatter" (see aspersion). Meaning "to bespatter someone's character with rumor and false reports" is recorded from 1610s.[asperse etymology, asperse origin, 英语词源]