mustelid (n.)youdaoicibaDictYouDict[mustelid 词源字典]
1910, from Modern Latin Mustelidae, taken as a genus name by Linnaeus (1758), from Latin mustela "weasel," possibly related to mus "mouse" (see mouse (n.)). Tucker tentatively suggests *mus-ters-la "mouse harrier" and Klein notes that the weasel was identified in antiquity as "the catcher of mice."[mustelid etymology, mustelid origin, 英语词源]