mongoose (n.)youdaoicibaDictYouDict[mongoose 词源字典]
"snake-killing ichneumon of India," 1690s, perhaps via Portuguese, from an Indic language (such as Mahrathi mangus "mongoose"), probably ultimately from Dravidian (compare Telugu mangisu, Kanarese mungisi, Tamil mangus). The form of the English word altered by folk-etymology.[mongoose etymology, mongoose origin, 英语词源]